at stp, o2(g) and o3(g) are two forms of the same element that have

The volume of the gas is 9.510 L

What is molar volume of gas?

The molar volume, symbol Vm, or of a substance in chemistry and related sciences is the ratio of the volume occupied by a material to the amount of substance, usually provided at a certain temperature and pressure. It is calculated by dividing the molar mass (M) by the mass density (): The SI measure for molar volume is cubic metres per mole (m3/mol), however it is more common to use cubic decimetres per mole (dm3/mol) for gases and cubic centimetres per mole (cm3/mol) for liquids and solids.

According to the combined gas equation,
P1V1/T1 = P2V2/T2
given a constant molar amount of gas

P1V1/T1 = P2V2/T2

V2 = 9.510 L

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Answer:

Mass = 8.46 g

Explanation:

Given data Mass of water produced = ? Mass of glucose = 20 g Mass of oxygen = 15 g

Solution:

Chemical equation:

C₆H₁₂O₆ + 6O₂     →   6H₂O + 6CO₂

Number of moles of glucose:

Number of moles = mass/molar mass

Number of moles = 20 g/ 180.16 g/mol

Number of moles = 0.11 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 15 g/ 32 g/mol

Number of moles = 0.47 mol

now we will compare the moles of water with oxygen and glucose.

              C₆H₁₂O₆           :            H₂O

                  1                   :              6

                0.11                :           6/1×0.11 = 0.66

                  O₂               :            H₂O

                  6                   :              6

                0.47                :           0.47

Less number of moles of water are produced by oxygen thus it will limit the yield of water and act as limiting reactant.

Mass of water produced:

Mass = number of moles × molar mass

Mass = 0.47 mol  ×18 g/mol

Mass = 8.46 g

Explanation:

The change in the internal energy of the system is -4511.8 J.

We know that according to the first law of thermodynamics, energy can neither be created nor destroyed  but can be transformed from one form to the other.

Now we know that;

ΔE = q + w

ΔE = Change in internal energy

q = heat absorbed or evolved

w = work done

Now we have;

q = - 134.8 J (The system losses heat)

w = PdV

w =  5.73 (1.00 -  8.540)

w = -43.2 Latm or -4377 J

Then we have;

ΔE = - 134.8 J + (-4377 J)

ΔE = -4511.8 J

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By the use of the Avogadro's number, the atoms are found to be 7.2 * 10^ 14 atoms in number.

We know that we can be able to use the Avogadro's number to be able to obtain the number of atoms that we can find in the atom. In this case, we have been told already that the molar mass of the atom is  241.1 g/mol. This implies that one mole of the atom does contain a mass of 241.1 g. With this settled, the number of atoms in one mole of the atom can be gotten as the Avogadro's number which is 6.02 * 10^23 atoms.

Thus we have;

If 241.1 g does contain about 6.02 * 10^23 atoms

2.90 * 10^-7 g would now be found to contain;

2.90 * 10^-7 g *  6.02 * 10^23 atoms/241.1 g

= 7.2 * 10^ 14 atoms

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Missing parts;

Calculate the answer. The molar mass of americkom-241 is 241.1 g/ mol. A new smoke detector button contains 0.290 micrograms

Answer:

The alcohol contains 15.10 mg O, and 22.6 mg C, and the rest is hydrogen. 15.10 / 43.40 = 37.49 %. Therefore, the percent composition of oxygen is 37.49 %.

The density  of plastic of length of 5 cm, width of 5 cm, and a height of 5 cm would be  1.6 gm / cm3.

In this case

The dimensions of a square chunk of plastic is 5 cm x 5 cm x 5cm.

Mass, m = 200 gm

Density =  Mass / Volume

It will form a cube. Hence, the Volume = side x side x side

So ,

d = 200 gm / 5cm x 5 cm x 5 cm

d = 1.6 gm / cm3

Hence , Density is equal to 1.6 gm / cm3.

What is density explain?

Density can be defined as the mass per unit volume. Density Symbol.

Density Formula: ρ = m/V,

where ρ is the density

m is the mass of the object and V can be defined as Volume.

What is a unit of density?

It is commonly expressed in units of grams per cubic cm.

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The new state of equilibrium result from shift to the right with net increases in [H₂]

Here given reaction is

2HI ⇄ H₂ + I₂

Equilibrium is the state in which opposing forces or action are balanced so that one is not stronger or greater than the other and when a new equilibrium is reached there will be more product than before and when concentration of reactant is increased the equilibrium shift to the right and there will be more product than before so here in this reaction the equilibrium result from shift to the right with net increases in [H₂]

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Answer:

Sn (Tin)

Explanation:

All of the electron orbitals are filled up so look at where 5p2 is, which is Sn.

An element E has the electron configuration [Kr] 5s24d105p2. The formula for the fluoride of E is most likely to be Fe (iodine).

Electronic configuration is defined as the distribution of electrons within its atomic orbitals. Atomic electron configurations are written using a standard notation that arranges all atomic subshells that contain electrons in a sequential order. The electron configuration is used to describe an atom's ground state orbitals, but it may also be used to depict an atom that has ionized into a cation or by compensating for any acquired or lost electrons in the orbitals after it, the anion.

It has a proton count of 53 and an atomic mass of 126.9. Iodine's atom, then, contains 53 electrons in the following configuration: 1s2, 2s2, 2p6, 3s2, 3d10, 4p6, 5s2, 4d10, 5p5 (Kr 4d10 5s2 5p5).

Thus, an element E has the electron configuration [Kr] 5s24d105p2. The formula for the fluoride of E is most likely to be Fe (iodine).  

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1. The empirical formula of the compound, given that it contains 86% C and 14% H is CH₂

2. The mass of C and H present in 100 g of the compound are: 86 g C and 14 g H (Option A)

1. How do I determine the empirical formula?

The empirical formula of the compound can be obtained as illustrated below:

Divide by their molar mass

C = 86/ 12 = 7.167

H = 14 / 1 = 14

Divide by the smallest

C = 7.176 / 7.167 = 1

H = 14 / 7.167 = 2

Thus, from the above calculation, we can conclude that the empirical formula of the compound is CH₂

2. How do I determine the mass of C and H?

The mass of C and H in 100 grams of the compound can be obtained as illustrated below

Mass of C = Percentage of C × mass of compound

Mass of C = 86% × 100

Mass of C = 0.86 × 100

Mass of C = 86 g

Mass of H = Percentage of H × mass of compound

Mass of H = 14% × 100

Mass of H = 0.14 × 100

Mass of H = 14 g

Thus, the mass of C and H are: 86 g C and 14 g H (Option A)

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Mass spectrometer M+1 peak is small and m/z unit to the right of the main molecular ion peak

Mass spectrometry is an analytical tool useful for measuring to mass to charge ratio and one or more molecule present in a sample and there measurement can often be used to calculate the exact molecular weight of the sample components as well and there is a technique

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The range of concentrations that will produce an absorbance between 0.20 and 0.80 is 0.00258 - 0.01032 M.

What is concentration?
Longer attention spans, better mental and emotional control, and the ability to concentrate on one thing at a time are all signs of concentration. Concentration is "the capacity to focus all of your effort and attention with one thing, without thinking about other things." The Macmillan Dictionary defines concentration as "the process of giving your full attention to something." When concentrating, the mind is single-mindedly focused on the thing that is being concentrated on. This particular thought becomes the focus of all mental energy. It takes training to hone the skill of mind control and attention regulation, which is uncommon. The majority of people struggle to keep their attention under control and to keep their thoughts entirely on one thing for any length of time.

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Answer: Option choice 1

The electronic configuration are found to be useful in determining the valency of an element. The electronic configuration of titanium is  1s²2s²2p63s²3p64s²3d². The correct option is A.

The distribution of the electrons in an atomic orbitals of an element is represented by the electronic configuration. The elements with similar electronic configurations tend to exhibit similar properties. The electronic configuration also called the electronic structure.

The titanium is a 'd' block element also called the transition element whose atomic number is 22. By knowing the atomic number the electronic configuration is written as 1s²2s²2p63s²3p64s²3d². Each element has its own electronic configuration.

The electronic configuration of an element generally obeys the Aufbau principle, Pauli's exclusion principle and Hund's rule. The electronic configurations are the summary of where the electrons are found around a nucleus.

Thus the correct option is A.

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The heat energy required to produce one mole of silicon is given 690 KJ. Thus, to produce 198 g or 6.82 moles of Si is 4710.6 KJ.

Enthalpy of a reaction is the change in heat energy absorbed or released from a reaction. The enthalpy change of  a reaction can be calculated from the standard enthalpy of formation of each of the reactants and products.

The given balanced reaction produces one mole of metallic silicon. The atomic mass of silicon is 29 g/mol. Thus 29 g of silicon is produced from one mole of silicon dioxide requiring an energy of 690 KJ.

Therefore, the 198 g of silicon, which is 198/29 = 6.82 moles of silicon needs 6.82 times the heat energy required for one mole

Heat energy = 6.82 × 690 KJ

                     = 4710.6 KJ.

Hence, the heat required to produce 198 g of Si from the given reaction is 4710.6 KJ.

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The coefficients that should be added to balance the chemical equation are: 2, 3, 2, 2

Coefficients are numbers written before elements or compounds in a chemical equation in order to balance it.

To obtain the coefficients, we shall balance the equation. This is illustrated below.

HgS + O₂ → HgO + SO₂

There are 3 atoms of O on the right and 2 atoms on the left. It can be balance by writing 3 before O₂, 2 before HgO and 2 before SO₂ as shown below

HgS + 3O₂ → 2HgO + 2SO₂

There are 2 atoms of Hg on the right and 1 atom on the left. It can be balance by writing 2 before HgS as shown below

2HgS + 3O₂ → 2HgO + 2SO₂

Now, the equation is balanced!

Thus, the coefficients needed are 2, 3, 2, 2

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Two ATP were created, two NAD+ were converted to two NADH + H+, and two glucose molecules were divided into two pyruvate molecules during the glycolysis process.

Anaerobic glycolysis predominates when there is no oxygen present (anaerobic conditions) and in cells without mitochondria. As lactate dehydrogenase reoxidizes NADH to NAD+, the pyruvate is degraded to lactate. Erythrocytes, which lack mitochondria, rely on this mechanism as a major source of ATP.

Pyruvate will go through a process known as fermentation when oxygen is absent or if an organism is unable to engage in aerobic respiration.

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The standard form for a linear equation is Ax + By = C with two variables.

Linear equations can be described as the equations of degree 1 and is a mathematical statement, which contains an equal sign (=) between the algebraic expression.

A linear equation is an equation for a straight line and their solutions will produce values, which when substituted for the unknown values and make the equation true.

Linear equations can be described as a combination of constants and variables. The standard form of a linear equation with one variable is expressed as ax + b = 0, where, a ≠ 0 and x is the variable.

A linear equation in two variables is expressed as ax + by  + c = 0, where, a ≠ 0, b ≠ 0, x, and y are the variables.

The linear equation in three variables is expressed as ax + by + cz + d = 0, where a ≠ 0, b ≠ 0, c ≠ 0, x, y, z are the variables.

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Answer:

its will be webbed

Explanation:

¿What is boric anhydride

Called boron oxide, chemically we can find it in nature. have a white and odorless appearance. It has great benefits that help people of any age and gender, in the field of conventional medicine.

Boric acid or trioxoboric acid (III) is a slightly acidic chemical compound.

A LITTLE MORE CONCEPT :

Your Formula : [tex]\bold{H_3BO_3}[/tex]

Its Molar Mass: 61.83 g/mol

Its Density: 1.44 g/cm³

Its Melting Point: 170.9 °C

Its Soluble in: Water

His PH: 5.1

Dew point for a day's weather is calculated to be 18°C, then the statement that is true based on the dew point is a)Water will condense if the air temperature drops below 18°C.

Dew point is that temperature to which air must be cooled to become saturated with water.

When it is cooled below the dew point, moisture capacity is reduced and water vapor will condense to form dew. When this takes place via contact with colder surface, dew will form on surface.

Dew point is affected by humidity. When there is more moisture in air , then dew point is higher.

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We can observe that if a gas has a higher relative molecular mass, it does not cover a large distance hence; "More massive gases do not move a large distance". This can be shown by Graham's law.

Thee term diffusion has to do with the movement of the molecules of the gas from one point to another. We know that the gas in this case was allowed to travel through  a horizontal glass tube at room temperature and pressure.

a) We can see from the data of the gas and the relative distance that the gas travelled that the gases that has the largest relative molecular mass tend to travel  the least distance through the glass tube.

b) The hypothesis that would support the statement is the; "More massive gases do not move a large distance".

c) An experiment that can be used to test this hypothesis i the experiment of Graham's law.

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The  two half cells are : Fe³⁺   +  e⁻    ---->  Fe²⁺

                                      Cu²⁺  +  2e⁻  ---> Cu

The standard electrode potential E° cell = 0.43 V

The overall reaction is given as :

Fe³⁺   +   Cu  ----->  Cu²⁺   +   Fe²⁺

The  two half cells are : Fe³⁺   +  e⁻    ---->  Fe²⁺     E° = 0.77 V

                                      Cu²⁺  +  2e⁻  ---> Cu             E° = 0.34 V

                                       Cu  ---->    Cu²⁺  +  2e⁻      E° = - 0.34 V

The standard electrode potential E° cell = 0.77 V + (-0.34 V)

                                                                    = 0.43 V

Thus, The  two half cells are : Fe³⁺   +  e⁻    ---->  Fe²⁺

                                      Cu²⁺  +  2e⁻  ---> Cu

The standard electrode potential E° cell = 0.43 V

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The element which contains 5 protons and 6 neutrons is Boron (B). The element which contains 8 protons and 10 neutrons is Oxygen (O). The element which contains 15 protons and 16 neutrons is Phosphorous (P).

Boron is the fifth element with a total of 5 electrons. Writing the electron configuration of boron, the first her two electrons enter the 1s orbital. Since 1s can only hold two electrons, the next two electrons of B move to the 2s orbitals. The remaining electrons go to the 2p orbitals.

The Bohr model of oxygen shows eight protons and neutrons in the nucleus, and eight electrons orbiting the nucleus at two energy levels. We know that oxygen has 8 subatomic particles because its atomic number is 8. The first energy level that electrons orbit can hold up to two electrons.

According to the Bohr atomic model, the phosphorus atom consists of 15 protons and 16 neutrons in the nucleus, and 15 electrons orbiting the nucleus in its three shells. K, L, M shells.

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Answer:

All of the children will have hair.

Explanation:

Since the Father has Dominant genes, for having hair, and the mother having recessive genes, for not having hair, the Dominant genes override the recessive, making the children have hair.

Explanation:

The particles in solids are arranged in a regular way. The particles in solids move only by vibrating about a fixed position. This gives solids a fixed shape and means that they cannot flow like liquids. The hotter a solid gets, the faster its particles vibrate.

During a chemical reaction: bonds in the reactants are broken new bonds are made in the products Energy is absorbed to break bonds. Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process.

Energy is absorbed when bonds are broken, and it is evolved when bonds are established.

Chemical bonds is defined as the creation of a chemical compound through the creation of a chemical link between two or more atoms, molecules, or ions. To form bonds, atoms exchange or swap their valence electrons. To reach a complete outer energy level, which is the most stable configuration of electrons, atoms must form chemical bonds.

Because more energy is required to break bonds than is produced when new bonds are formed, energy is absorbed in some reactions. As a result, during a reaction, many kinds of bonds may form. Energy is released as a result of the creation of bonds. Energy is absorbed when bonds are broken.

Thus, when bonds are broken, energy is absorbed, and when bonds are formed, energy is evolved.

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Answer:

Explanation:

gravity plays the role of the force that keeps the moon "attached" to the body.   Gravity is pulling the moon into the planet, as long as the moon has a velocity that keeps it from falling directly into the planet it will orbit

Answer:

4.67 liters of SO2 with sig figs

Explanation:

To do this reaction, we first must find the limiting agent.
in this problem, 5 liters of H2S are reacted with 7 liters of O2, and each two moles of H2S corresponds to 3 moles of O2. Assuming ideal behavior, 1 liter of H2S has the same number of moles as 1 liter of O2 has. So, 2 liters of H2S react with 3 liters of O2. To find the limiting reagent, focus on one reagent and calculate how much of the other reagents would be needed to fully consume that one reagent.
Focus on H2S:
5 liters of H2S would require 7.5 liters of O2 (since each 2 liters of H2S requires 3 liters of O2)

Focus on O2:
7 liters of O2 would require 14/3, or 4.666... liters of H2S.

Since we don't have 7.5 liters of O2 (we only have 7 liters) to react with all 5 liters of H2S, we would say that O2 is the limiting reagent, and that we have 7 liters of it.

Next, figure out how much product can be produced per mole of that limiting reagent. 3 moles of O2 and 2 moles of H2S turns into 2 moles of SO2 and 2 moles of H2O. Thus, the ratio of O2 to SO2 is 3:2
We have 7 liters of O2, and since the ratio of O2 to SO2 is 3:2, we can set up the equation:
7:x = 3:2 where x is the number of liters of SO2
cross multiply (or solve with another method) to get:
x = 14/3, or 4.666... liters of SO2

The reaction rate is proportional to the square of the amount of reactant, so the rate will increase by a factor of the square of 2.81 is 7.8961

The rate of reaction is the speed at which reaction proceed and it often expressed in term to either the concentration of product that is formed in a unit of time or the concentration of reactant that is consumed in a unit of time and formula is  concentration of any reactant or product as [reactant] or [product] so the concentration A can be represented as [A] and that of B as [B]

Here given data is

0.450/0.160=2.81 , the second reaction contains 2.81 times the amount of reactant compared to Reaction 1

Then square of 2.81 is (2.81)² = 7.8961

So the rate will increase by a factor of the square of 2.81 is 7.8961

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If 280 grams of CO₂ is at 13 °C and 445 kilopascal, the volume for the given data in the mL is 34,000 mL.

First we need to convert the given pressure in atm, temperature in Kelvin.

T=13+273=286K

P=445 kpa×(1000 pa/1 kpa)×(760 mmHg/101325 pa)×(1 atm/760 mmHg)

=445×1000×1 atm/101325

=445000 atm/101325

=4.3918 atm

The molar mass of CO₂ is 44g/mol and the number of moles of 280g of CO₂ is

moles(n)=280 g×(1 mol/44 g)

=6.3636 mol

According to the ideal gas law

PV=nRT

Where R=0.08206 Latm/molK

Rearrange the formula for V and plug all the values to solve for V

V=(nRT/P)

=(6.3636 mol×0.08206 Latm×286K)/4.3918atm×molK

=149.38435 L/4.3918

=34.0143 L≈34 L

Convert the above volume in L

34 L×(1000 mL/1 L)

=34000 mL

Therefore, the volume of the given data in mL is 34000 mL.

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The suspect’s ridge characteristics match the ridge characteristics that were gathered from the crime scene means these fingerprints are from the same person.

Fingerprints have been used for long time in forensic identification purposes thanks to features within their patterns called ridge characteristics or also minutiae. All fingerprints fall into one of three basic overall patterns, the arch, the loop, and the whorl.

Humans have characteristically ridged skin on their fingertips, palms, and also soles. This roughened skin makes it easier to grip things and, up close as well, it appears as patterns of tiny ridges and furrows. The fingertips, palms, and soles can sometimes create a transfer of these patterns when they come into contact with surfaces and objects. The most important of these transfers are fingerprints, made when the tips of the fingers and thumbs make impressions.

So, If the ridge characteristics are matching then there is high chance that those fingerprints are of the same person.

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