The gas in a 225. 0 ml piston experiences a change in pressure from 1. 35 atm to 2. 60 atm. What is the new volume (in ml) assuming the moles of gas and temperature are held constant?.

Answers

Answer 1

1 atm (275 mL) equals 3.10 atm V2, where V2 is equal to 275 mL divided by 3.10, and P1V1 equals P2V2. The calculation is 1(275) = 3.1 (88.71) = 275.

How does chemistry deal with pressure?

The ideal gas equation can be changed to demonstrate that the pressure of a sample of gas is directly proportional to the amount of gas present, volume, and temperature is held constant: P=n(RTV)=n×const

V1 T1 V2 T2 is what formula?

Volume and temperature are related as follows: V1 / T1 = V2 / T2, where V1 and T1 represent the beginning volume and absolute temperature, and V2 and T2 represent the final volume and absolute temperature (the Kelvin temperature, not the Celsius temperature).

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Related Questions

A student performs four trials of an investigation to determine the boiling point of water. How should the student handle the results?(1 point).

Answers

The student should take the average of the results from all four trials to obtain the highest level of accuracy.

What is precision?

Chemistry's definition of accuracy is how closely a measurement resembles the actual value.

Three categories of accuracy exist:

1) Point accuracy signifies that accuracy is present only at that scale point.

It provides no details regarding the instrument's accuracy.

2)Percentage of true value - The accuracy is assessed by identifying the instrument's accuracy and contrasting it with the true value that was measured.

3)Percentage of scale range – The accuracy is what determines the measurement's accuracy.

Up to 0.5 percent of instrument accuracy is disregarded. By taking multiple measurements and accounting for human error, measurement accuracy can be improved.

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If the half-life of a radioactive element is 18 days, what percentage of the original sample would be left after 108 days?.

Answers

1.56% would be the percentage of the original sample would be left after 108 days.

What is  a radioactive element?

Radioactive elements are composed of atoms with unstable nuclei and emit atomic radiation as part of the stabilization process. Emission of radiation transforms radioactive atoms into different chemical elements. This chemical element is either stable or highly radioactive, so it decays further. Since some elements in nuclei are unstable due to the presence of excess nuclear charge, these nuclei undergo radioactive decay to form stable nuclei. These elements are called radioactive elements.

The nuclear stability of the elements can be calculated from the n/p (neutron-proton ratio). Elements with atomic numbers up to Z=20 are stable and contain the same number of protons and neutrons. As the atomic number increases, the repulsion between protons increases, requiring more protons and neutrons. Therefore, the neutron-to-proton ratio of stable nuclei increases with increasing atomic number.

Therefore, 1.56% would be the percentage of the original sample would be left after 108 days.

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Which molecule contains a nonpolar covalent bond?
A) H2
B) NH3
C) H₂O
D) CO

Answers

B, C, and D are polar, so the answer would b A) H2
H2, If you draw out all of the molecules Lewis structures they all contain a lone pair indicating they’re polar. H2 doesn’t have a lone pair because Hydrogen doesn’t follow the octect rule. So, it’s A.

the atomic mass and abundance of Si-28 is 27.977 amu and 92.2%. The atomic mass and abundance of Si-29 is 28.976 amu and 4.7%. The atomic mass and abundance of Si-30 is 29.974 amu and 3.1%. which is the average atomic mass of silicon?​

Answers

The average atomic mass of silicon has a natural abundance of Si-28 of 92.23% and Si-30 of 3.1%.

If the mass number of an atom of silicon, Si, is 28, how many neutrons does that atom contain?

Because the amount of protons and electrons in a neutral substance is equal, silicon also contains 14 electrons. 28 - 14 protons equals 14 neutrons since the mass number is equal to the sum of the protons and neutrons.

With abundance and amu, how do you determine atomic mass?

Unknown. By dividing by 100, convert each percentage of abundance to a decimal. This value should be multiplied by the isotope's atomic mass. Get the average atomic mass for each isotope by adding everything up.

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How has the discovery of DNA affected the classification of protists?

Answers

The discovery of DNA has had a significant impact on the classification of protists, which are a diverse group of eukaryotic organisms that include algae, protozoa, and slime molds. Before the discovery of DNA, protists were classified primarily based on their physical characteristics, such as their size, shape, and mode of locomotion. However, this approach to classification was limited because it did not take into account the evolutionary relationships between different protist groups.

With the discovery of DNA and the development of molecular techniques for analyzing genetic material, scientists were able to analyze the genetic makeup of different protist species and use this information to classify them in a more accurate and meaningful way. By comparing the DNA sequences of different protist species, scientists were able to determine which species were closely related and which were more distantly related. This led to the development of new classification systems that were based on evolutionary relationships rather than just physical characteristics.

Overall, the discovery of DNA has greatly enhanced our understanding of protist evolution and has allowed for more accurate and meaningful classification of these organisms. It has also led to the discovery of many new protist species and the reclassification of previously known species into new taxonomic groups.

Abbreviations along with the explanation are shown. Which set used in chemical equations is correct?
O (g). grams
O (aq), dissolved in water
O (1), liters
O, a gas is evolved

Answers

Answer:

B and D

Explanation:

Answer D, look like you're missing (g) which stands for gas

so answer B (which is aq) and answer D (which is g) are correct.

Grams and litters are not used in the chemical equations but used in calculation of the quantities of reactants and products.

You plan to use the water displacement method to determine if a ring is pure silver

Answers

The water displacement method is a set of measurements used to calculate the volume of an irregularly shaped object. These objects are commonly known as irregularly shaped solids.

What is water displacement method ?

The displacement method (also known as the submersion or dunking method) can be used to accurately measure the volume of the human body and other irregularly shaped objects by measuring the volume of fluid displaced when the object is submerged.

Place your jewelry on a table or in your hand, and pour some white vinegar directly on the metal (a dropper can also be used). If the metal of the jewelry changes color, it is not pure gold; if it continues to shine, you have real gold in your hand.

Thus, The water displacement method is a set of measurements used to calculate the volume of an irregularly shaped object.

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calculate the molarity of a kcl solution prepared by dissolving 1.01 moles of kcl in 250. ml of water. calculate the molarity of a kcl solution prepared by dissolving 1.01 moles of kcl in 250. ml of water. 2.02 0.00404 0.248 4.04 none of the above

Answers

The molarity of the KCl solution is 4.04 moles/ litre

What is molarity?

Molarity (M), which is determined by dividing the solute's mass in moles by the volume of the solution in liters, is the most widely used unit to express solution concentration: liters of solution/moles of solute equals M. One liter of a solution with a 1.00 molar concentration (1.00 M) contains 1.00 moles of solute.

The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. The molar concentration of a solution is another name for molarity.

Molarity = no. of moles/ volume of solution

Volume of KCl solution given is 0.25 L

molarity = 1.01 / 0.25

molarity = 4.04 moles/ litre

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So if you have a non-coated iron nail in water and the conditions do not change does it rust at the same rate every day. will the weight of the nail change in a constant pattern, for example, the weight of the nail to start would be 5.5 and the end weight would be 6.1 and it sits in the water for 5 days. would the nail gain all 0.6 grams of rust weight in a constant pattern of 0.1

Answers

Check the nails every day for the development of rust. Both the nails submerged in water should rust after three weeks, while the nail submerged in vinegar should rust after about one week.

What do you mean by Rust ?

Rust is a similar coating created on a metal other than iron by corrosion. It is a reddish brittle coating that forms on iron especially when chemically attacked by damp air and is constituted primarily of hydrated ferric oxide.

Rust is a result of the reaction of iron with both air and water. Rust is a powder that forms from the oxygen in the air. Rusting is the process of rust creation. Rust is a reddish-orange flaky material. The metal surface is where rusting is more prone to happen because it is an oxidation process.

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what is the name of the compound below? multiple choice trans-3-bromocyclohexanecarboxylic acid cis-3-bromocyclohexanecarboxylic acid trans-5-bromocyclohexanecarboxylic acid cis-5-bromocyclohexanecarboxylic acid

Answers

The compound is called cis-3-bromocyclohexanecarboxylic acid. Out of the available possibilities, this is the best decision.

What is a carboxylic acid?

The most significant functional group in C=O is the carboxylic acids. Some carboxylic acids, such citric acid, lactic acid, or fumaric acid, are produced through fermentation; the majority of these types of carboxylic acids are used in the food sector. This class of organic molecules can be obtained through several methods.

The significance of carboxylic acids in organic chemistry?

Carboxylic acids play a significant role in organic chemistry and are used to create a variety of derivatives, including esters, acid anhydrides, acid chlorides, amides, etc. They are organic substances with one or more carboxyl groups in the molecules of their molecules.

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If a package has 3 servings and one serving has 300 calories. How many calories are you eating if you eat the whole package?.

Answers

If you eat the whole package, you would be eating a total of 900 calories.

What is calorie?
Calories
are a measure of energy. Two main meanings of "calorie" are frequently used due to historical factors. The amount of heat required to increase the temperature of one kilogramme of water by one degree Celsius was the original definition of the huge calorie, food calorie, as well as kilogramme calorie (or one kelvin). The amount of heat required to produce the same rise in one gramme of water was known as the small calorie or gramme calorie. As a result, 1000 small calories are equal to 1 large calorie. The term "calorie" and the symbol "cal" almost always refer to the large unit in food and nutrition science.

If you eat the whole package, you would be eating a total of 900 calories (3 servings x 300 calories per serving = 900 calories).

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How many isomers have a dichlorocyclobutane ?

Answers

Answer:

The three isomers of trans-1, 2-dichlorocyclobutane are as follows: The stereoisomers are those compound which differs in configuration. The stereoisomer of trans-1, 2-dichlorocyclobutane is cis-1, 2-dichlorocyclobutane.

a current of 0.450 a passed for 20.0 min through a cuso4 solution. calculate the amount of copper deposited.

Answers

The amount of copper deposited is 0.1778 grams.

The electrolysis reaction for CuSO₄ solution

Cathode : Cu⁺² + 2e → CuAnode : 2H₂O → 4H⁺ + 4e + O₂

Copper deposits will occur at the cathode. According to Faraday's law the number of moles of an electron

ne = It ÷ 96,500

I = the magnitude of the current (Ampere)t = the interval time (s) t = 20 min = 20 × 60 = 1,200 sne = the number of moles for electron

ne = (0.450 × 1,200) ÷ 96,500

ne = 540 ÷ 96,500

ne = 5.6 × 10⁻³ mol

The ratio of the coefficients of each element is equal to the ratio of the number of moles.

ne : n Cu = 2 : 1

n Cu = ne ÷ 2

n Cu = (5.6 × 10⁻³) ÷ 2

n Cu = 2.8 × 10⁻³ mol

Calculate the amount of copper

The molar mass for copper = 63.5

m = n × molar mass

m = 2.8 × 10⁻³ × 63.5

m = 0.1778 grams

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if 3.8 g of cu3(po4)2(s) was recovered from step 1, what was the approximate [cu2 ] in the original solution? (the molar mass of cu3(po4)2 is 381 g/mol.)

Answers

If 3.8 g of Cu₃(PO₄)₂(s) was recovered from step 1, the approximate [Cu²⁺ ] in the original solution is 0.3 M

The approximate [Cu²⁺ ] in the original solution can be calculate as follows

first we should calculate the moles of Cu₃(PO₄)₂ by dividing the mass with its molar mass

Moles of Cu₃(PO₄)₂ = mass/ mass molar

Moles Cu₃(PO₄)₂ = 3.8 g /  381 g/mol = 0.1 moles

we know the balance reaction of this reaction is

3Cu²⁺ + 2Na₃PO₄ ⇒ Cu₃(PO₄)₂ + 6 Na⁺

with unitary method we can conclude 3 Cu²⁺ produce 1 Cu₃(PO₄)₂ so we can calculate the 3Cu²⁺

mol Cu²⁺ = 3/1 x mol Cu₃(PO₄)₂

mol Cu²⁺ = 3x 0.1 = 0.3 M

Your question is incomplete but most probably the full question attached below

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How many grams of PbSO4 would
be produced from the complete
reaction of 23.6 g PbO2?
Pb+ PbO2 + 2H2SO4
PbO2: 239.2 g/mol
PbSO4: 303.27 g/mol

2PbSO4 + 2H2O
{? ] g PbSO4

Answers

One mole or 239.2 g of PbO₂ or 239.2 g gives two moles or 606.5  of lead sulphate. Thus, 23.6 g of lead oxide will give 59.84 g of lead sulphate.

What is lead oxide?

Lead oxide is an ionic compound formed by the ionic bonding between the transition metal lead and oxygen by losing two electrons from lead to oxygen. It reacts with sulphuric acid giving lead sulphate PbSO₄.

As per the given balanced reaction, one mole of lead oxide gives two moles of lead sulphate.

Molar mass of PbO₂ = 239.2 g/mol

Molar mass of  PbSO₄ = 303.27 g/mol

2 moles of  PbSO₄ = 2 × 303.27  = 606.54 g.

Thus, 239.2 g of lead oxide gives 606.54 g of PbSO₄. The mass of PbSO₄ produced from 23.6 g of lead oxide is:

= (23.6 × 606 .54 )/ 239.2 g

= 59.84 g.

Therefore, the mass of PbSO₄ produced from 23.6 g of PbO2 is 59.84 g.

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waghorne, w.e.; rous, a.j. determination of the relative atomic masses of metals by liberation of molecular hydrogen. j. chem. ed. 2009, 86, 350-351.

Answers

The relative atomic mass of the element is the average value of the hydrogen atom is 1.008 amu.

The mass of the one is the atomic mass. one amu is given as:

1 amu = 1.661 × 10⁻²⁷ kg

the hydrogen atom has the mass of = 1.6736 × 10⁻²⁴ g

The mass of the one twelfth carbon atom is given as :

= 1.661  × 10⁻²⁴ g

the relative atomic mass is given as follows :

Relative atomic mass = mass of the hydrogen atom/mass of 1/12 carbon atom

relative atomic mass = 1.6736 × 10⁻²⁴ g /  1.661  × 10⁻²⁴ g

Relative atomic mass = 1.008 amu

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what is the mass of 0.257 mol of calcium nitrate?

Answers

Answer: 42.14 g

Explanation:      calcium nitrate -  [tex]Ca(NO_{3} )_{2}[/tex]

                   , the molar mass of calcium nitrate = 164 g

                  formula used = [tex]given mass/molar mass[/tex]= no of moles

                   mass required =[tex]0.257*164[/tex]

                                               =[tex]42.14[/tex] g

                     

             

A random sample of carbon contains two isotopes: C-12 and C-13 with masses of 12.00 amu (5.00 %) and 12.99 amu (95.00 %) respectively. Determine the average atomic mass of this carbon sample and explain if your sample was a good representation of earth’s natural isotope abundance of carbon

Answers

The average atomic mass of this carbon sample is 12.011 amu. This sample is a good representation of earth’s natural isotope abundance of carbon, as it closely matches the natural abundance of C-12 (98.89%) and C-13 (1.11%) on Earth.

Why is it important to conduct multiple trials of an investigation to determine the melting point of ice?.

Answers

Answer:

A

Explanation:

if your isolated product has succinimide present, what key feature should be present in the ir spectrum of your product?

Answers

If our product includes succinimide, the IR spectra should show a prominent peak at around 1700 cm-1, suggesting an incomplete reaction.

What function does succinimide serve?

There are several applications for these chemicals. The succinimides ethosuximide, phensuximide, and methsuximide are among the medications used as anticonvulsants. Succinimides are also utilized in a number of test procedures to create covalent connections between peptides or protein chains and polymers.

What is the Succinimides' mode of action?

Succinimides inhibit voltage-dependent calcium leakage in thalamic neurons via acting on calcium T channels. Either the gastrointestinal system (vomiting, nausea, and abdominal discomfort) or the central nervous system are ethosuximide's side effects (lethargy, dizziness, and ataxia).

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An atom Y ha atomic number 13. It loe 3 electron in order to be table. What i the proton number and electron number of the atom
(a)before it loe electron
(b) after loing electron
(ii) name the of ion formed by the atom when it loe three electron. Show by illutration

Answers

In the following question the number of protons and electrons before it

a)lose electron are proton number= 13 electron =13

b) after losing electrons proton number=10 electron =10

c)the type of ion it becomes is a cation as it has a positive charge on it

What is atomic number?

The number assigned to a chemical element according to its atomic number in the periodic system, which places the elements in ascending order of the number of protons in their nuclei.

In the first scenario before loses electrons the number of protons and electrons in the atom before loses electron is 13, as given atomic number is 13.In second scenario After it loses 3 electrons Number of elctrons in the atom is 10 and number of protons is 13, as protons are present in the nucleus.

Therefore the number of protons is same i.e. 13 within the atom and no. of electrons after losing 3 electrons is 10 and it becomes a cation.

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Radiation Exposure from Dental X-rays Dental X-rays expose patients to about 5.00 μSv of radiation. 4th attempt Part 1 (I point) Feedback Given an RBE of 1.00 for X-rays, how many micrograys of radiation does 5.00 μSv represent?

Answers

The energy of radiation exposure from dental X-rays per given weight is 272.5 μJ.

The dental assistant can respond to this patient's concerns by telling the patient that the amount of radiation coming from the x-ray is minimal and will have no negative effect.

Given,

mass = 54.5 kg

Radiation = 5 μSv

Now

Energy per kg = 5 μSv *10⁻⁶ Sv / 14 Sv * 1 J/Kg/ 1 Sv

Energy per kg = 5 * 10⁻⁶ J/Kg

Then,

Energy per given weight of 54.5 kg

Energy per given weight = (54.5 kg)*(5*10⁻⁶)

Energy per given weight = 272.5 * 10⁻⁶ J

Therefore, energy of radiation exposure from dental X-rays per given weight is 272.5 μJ.

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How many grams of Ag2S2O3 form
when 125.0 g AgBr reacts completely
according to the reaction below?
2AgBr + Na2S2O3 → Ag2S2O3 + 2NaBr
Ag2S2O3: 327.74 g/mol
AgBr: 187.70 g/mol
[ ? ] g Ag₂S2O3

Answers

A) Molar mass of AgBr,

MM = 1*MM(Ag) + 1*MM(Br)

= 1*107.9 + 1*79.9

= 187.8 g/mol

mass of AgBr = 0.45 g

mol of AgBr = (mass)/(molar mass)

= 0.45/1.878*10^2

= 2.396*10^-3 mol

B) According to balanced equation,

mol of Na2S2O3 formed = (2/1)* moles of AgBr

= (2/1)*2.396*10^-3

= 4.792*10^-3 mol

Answer: 4.79*10^-3 mol

B) Using: number of mol = M(Na2S2O3)*V(Na2S2O3)

4.792*10^-3 mol = 0.02 M * V

V = 0.240 L

V = 240 mL

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Answer:

Explanation:

it's 109.13 g Ag2S2O3 . i have it when i was in school :)

Vinegar has a concentration of 0.87mol/L acetic acid to make a 100ml solution it is diluted by a factor of 10 how do u find the original volume of vinegar and the concentration of acetic acid in the diluted solution

Answers

To find the original volume of vinegar, we can use the following formula:

Original volume of vinegar = Diluted volume * Dilution factor

In this case, the diluted volume is 100 ml and the dilution factor is 10, so the original volume of vinegar is:

Original volume of vinegar = 100 ml * 10 = 1000 ml

To find the concentration of acetic acid in the diluted solution, we can use the following formula:

Diluted concentration of acetic acid = Original concentration of acetic acid / Dilution factor

In this case, the original concentration of acetic acid is 0.87 mol/L and the dilution factor is 10, so the diluted concentration of acetic acid is:

Diluted concentration of acetic acid = 0.87 mol/L / 10 = 0.087 mol/L

This means that the diluted solution has a concentration of 0.087 mol/L acetic acid.

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Which reaction will most likely take place based on the activity series?

Li > K > Ba > Ca > Na > Mn > Zn > Cr > Fe > Cd > Ni > H > Sb > Cu > Ag > Pd > Hg > Pt

Pt + FeCl3 Right arrow.
Mn + CaO Right arrow.
Li + ZnCO3 Right arrow.
Cu + 2KNO3 Right arrow.

Answers

According to the reactivity series, Lithium is more reactive than Zinc therefore, Li + ZnCO₃ reaction will most likely take place. Therefore, option (C) is correct.

What is reactivity series?

The reactivity series or the activity series can be defined as the arrangement of metals or elements in the descending order of their reactivities.

The metals at the top of the reactivity series are powerful reducing agents and can be readily oxidized and easily corrode. The reducing ability of metals becomes weaker while moving down the reactivity series.

Lithium is more reactive than Zn so it can displace Zinc from zinc carbonate therefore, Li + ZnCO₃ reaction will most likely take place. Pt is less reactive than Fe so it can not displace Fe from FeCl₃ therefore, Pt + FeCl₃ reaction will not take place.

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Answer:

c

Explanation:

edge 2023

s the electrical conductivity of carbonated water better than, worse than or similar to the electrical conductivity of pure water?

Answers

A poor conductor of electricity is pure water. The electric conductivity of regular distilled water is around 10 times when it is in equilibrium with atmospheric carbon dioxide.

Does carbonated water have more conductivity?

On the other hand, it was discovered that different types of water had significantly varying conductivities, which indicate the overall amount of dissolved solids. And as predicted, pure water had the lowest conductivity while carbonated water had the greatest.

Does carbonation affect conductivity in any way?

When the graphene content is less than 2.0%, it is discovered that electrical conductivity increases with increasing carbonation depth. In this instance, the cement matrix, which can be improved by carbonation product through filling pores, determines the electrical conductivity of the composite.

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if there were any other acids other than acetic acid present in vinegar, how would this affect your results

Answers

It would be challenging to calculate the percentage of simply acetic acid in vinegar if other acids were also present since they would mix with it.

Describe acid.

A chemical that creates salts when it combines with specific metals while also releasing hydrogen atoms into water. Acids have a sour taste and give some colors, a reddish tint. Acids generated by the body, such stomach acid, can assist organ function. One type of acid is hydrochloric acid.

Where does acid come from?

For instance, they can be used as an essential component in the chemical industry, like an electrolyte in a wet-cell battery (like a car battery), and to remove rust from metals.

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Barium metal crystallizes in a body-centered cubic lattice (the Ba atoms are at the lattice points only). The unit cell edge length is 502 pm, and the density of the metal is 3. 50 g/cm3. Using this information, calculate Avogadro's number. [Hint: First calculate the volume (in cm3) occupied by 1 mole of Ba atoms in the unit cells. Next calculate the volume (in cm3) occupied by one Ba atom in the unit cell. Assume that 68% of the unit cell is occupied by Ba atoms. ]

Answers

The Avogadro' s number is 6.022×10²³

What is body centered cubic lattice?

The Bravis lattice of the same name serves as the basis for the BCC crystal structure, which has one atom per lattice point at each of the cube's four corners and in its centre. BCC's high proportion of nearest and next-nearest neighbours contributes to its tight proximity and excellent stability.

atomic mass of Ba = 137.327u

No. of atoms of Ba in a BCC unit cell = 2

Edge length of unit cell= 502pm =502ₓ10⁻¹⁰ cm

density =3.50g/cm³

ρ=ZM/N₀ₓV

3.50=2ₓ137.327/N₀ₓ(502ₓ10⁻¹⁰)³

=78.47257/1.265ₓ10⁻²²

N₀=6.02ₓ10²³

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how many constitutionally isomeric ethers are there with a formula of c4h10o? multiple choice only one two three four

Answers

The isomeric ethers with a formula of  C4H10O are three. Isomers do not  share similar chemical or physical properties.

What are isomers?

Isomers are compounds that have exactly the same number of atoms, that is, they have exactly the same empirical formula, but differ from each other by the arrangement of atoms.  It is important to be able to recognize isomers because they have different chemical, physical and biological properties.

Structural isomers can be divided into : functional group isomers, chain isomers, and positional isomers.

In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae but distinct arrangements of atoms in space.

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calculate the phph of a solution in which one normal adult dose of aspirin (640 mgmg ) is dissolved in 6.0 ounces of water.

Answers

The pH of the solution in which one normal adult dose aspirin is dissolved is 2.6 .

Given,

mass of aspirin = 640 mg = 0.640 g

volume of water = 6 ounces = 6 × 0.0295735 L = 0.177441 L

molar mass of aspirin = 180.16 g/mol

moles of aspirin = mass / molar mass = 0.00355 mol

The pH of the solution is as follows,

concentration of aspirin = moles of Aspirin / volume of water

= 0.00355 / 0.177441

= 0.021 M

Given that pKa of Aspirin = 3.5

pKa = -logKa

Therefore, Ka = 3.162 × 10⁻⁴

From the Ice table

3.162 × 10⁻⁴ = [x + H⁺]/[aspirin] = [x²]/[0.021 - x]

Given that the value of Ka is small so we will ignore -x

x² = 3.162 × 10⁻⁴ × 0.021

x = 2.576 × 10⁻³

Therefore,

[ H⁺ ] = 2.576 × 10⁻³

given that

pH = - Log [ H⁺ ]

     = - ( -3 + log 2.576 )

     = 2.58 ≈ 2.6

Hence we can conclude that The pH of the solution in which one normal adult dose aspirin is dissolved is 2.6 .

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mary anne warren says that human lives have greater intrinsic value than animal lives because human lives are worth more to their possessors. Most foreign policy analysts expect the United States rivalry with China to provoke conflict within three to five years. -7/12=1 5/6+d what is d? ............................................................... Write 1 paragraph summary of 'Habitat Before Conservation Which B vitamin is critical for DNA synthesis and cell division?Folate (folic acid)Folate (folic acid) is critical for DNA synthesis and cell division. Folate is naturally found in foods, especially leafy green vegetables, but is more easily absorbed in its synthetic form, folic acid. Folic acid is found mostly in fortified foods such as breads and breakfast cereals and in supplements. approximately what percentage of the total blood oxygen is bound to hemoglobin instead of dissolved in plasma? The official poverty measure has frequently been criticized as an insufficient tool for calculating poverty. Provide your own critique of the official poverty measure that includes a comparison with the Supplemental Poverty Measure.(4 points) what type of birth control is cheap, readily available, and offers significant protection against stis? Which statements about chronic obstructive pulmonary disease (COPD) are correct? Select all that apply. What directly causes an action potential in the cochlear duct? what are some features that make highway roads safer for drivers who are driving at higher rates of speed? (select 5 correct answers) which of the following solutions contains the greatest number of ions, assuming all these salts dissociate completely? A)400.0 ml of 0.10 m nacl. b) 300.0 ml of 0.10 m cacl2. C) 200.0 ml of 0.10 m fecl3. D) 800.0 ml of 0.10 m sucrose. Part 2 out of 2 Now consider the stereochemistry in the reaction below: Meo DMSO heat Select the answer choice below that correctly picks the appropriate hydrogen to remove in this reaction as well as the correct reasoning for this choice. O Hb is removed because it is anti-periplanar to the leaving group C1O It doesn't matter whether Ha or Hb is removed as both will lead to the specified product O Ha is removed because it is syn-periplanar to the leaving group CI O ) Ha is removed because it is anti-periplanar to the leaving group CI O Hb is removed because it is syn-periplanar to the leaving group Cl In 200 words, Why are school-family partnerships so important? How can they be supported? how to we convince other people that geometric claim is true? Cloud cover is the percent of Earth's surface covered by clouds! Cloud cover may increase due to an increase in cosmic ray flux (the number of high-energy particles from space that reaches Earth). Figure 1 shows the relationship between low cloud cover and relative cosmic ray flux (RCRF). What was the monthly average cloud cover in January of 1990? a. 20.1% b. 7% c. 19.25% d. 3.5% culture is it mutable 3.3. A triangle has sides of lengths (7x + 1) cm, (4x - 1) cm and (14- x) cm. If theperimeter is 84 cm, find the dimensions of the triangle. ___ refers to the creation of rule-governed processes and procedures that are used consistently and repeatedly, oftentimes under legal-rational authority