Answer:
0.0017 mole
Explanation:
1 mole = 6.02 x 10^23 atoms
so the number of mole in 1.0 × 10^21 atoms is
(1.0 × 10^21)/(6.02 x 10^23) = 0.00166112956 or 0.0017 mole
the sentence or answer the question.
1. What kinds of particles were emitted by the radioactive source? What was there charge?
What is the main job of Excretory system?
Answer:
It's function is to remove wastes from the body
Explanation:
These wastes include water, carbon dioxide, nitrogen, salts, and heat. Metabolism: The process of the body converting food into energy. As a result, there are waste products.
What will happen if ammonia is added to a mixture of Ag+, Fe3+ and Co2+?
describe the subsequent steps that couls be preformed to separate the three cations?
Ag⁺, Fe³⁺, and Co²⁺ react with ammonia to generate the complex ion when ammonia is added to the mixture.
The following actions could be taken in order to separate the three cations:
Precipitation of the silver ion as the insoluble silver chloride salt is the initial stage in the separation of these three cations. The addition of hydrochloric acid is all that is necessary to produce this precipitate.
Ag⁺ (aq) + HCl (aq) ⇄ AgCl (s, white) + H⁺ (aq) .... (eq. 1)
By centrifuging the test tube and separating the supernatant, the silver can then be distinguished from the other two cations because neither iron (III) nor cobalt (II) can produce an insoluble chloride salt. The precipitate that is still in the test tube is next tested to determine if there is silver present. The silver (I) complex dissolves after the addition of ammonia first.
AgCl (s) + 2 NH₃ (aq) ⇄ Ag(NH₃)₂⁺ (aq) + Cl⁻ (aq) ........(eq. 2)
Nitric acid will cause the ammonia, NH₃, to react with the acid, shifting the balance to the left and causing the silver ion to re-precipitate as silver chloride.
Fe³⁺ and Co2+ are both present in the supernatant that was previously decanted. The iron (III) ion forms an insoluble hydroxide and precipitates out of the solution when ammonia is added to the mixture.
Fe³⁺ (aq) + 3 NH₃ (aq) + 3 H₂O (l) ⇄ Fe(OH)₃ (s) + 3 NH₄ ⁺ (aq) ........(eq. 3)
Fe(OH)₃ is left as a solid after centrifugation and decantation, and it can be dissolved with hot hydrochloric acid. You will carry out each of the two iron (III) confirmation tests. If Fe³⁺ is present in the first, adding potassium thiocyanate solution results in a red-brown color.
Fe³⁺(aq) + SCN⁻ (aq) ⇄ Fe(SCN)₂⁺ (aq, red-brown) ........(eq. 4)
In the second test, potassium ferrocyanide, K₄[Fe(CN)₆] solution is added after adding ammonia until the solution is only marginally acidic. Prussian blue is a dye that is a solid dark blue color when iron (III) is present.
4 Fe³⁺ (aq) + 3 K₄[Fe(CN)₆] (aq) ⇄ Fe₄[Fe(CN)₆]₃ (s, blue) + 12 K⁺ .......(eq. 5)
Some blue inks contain this chemical suspended in a solution.
A straightforward test can establish the cobalt ion's existence in the decanted supernatant solution. Hydrochloric acid is added to the basic solution to make it significantly more acidic. When potassium nitrite, KNO₂, is added, potassium hexanitritocobaltate, an insoluble yellow chemical, is created (III).
Co²⁺ (aq) + 7 NO₂⁻(aq) + 3 K⁺ (aq) + 2 H⁺ (aq) → NO (g) + H₂O (l) + K3[Co(NO2)6] (s, yellow) ........(eq. 6)
Nitric oxide, or NO, a colorless gas, is created via the reaction in Eq. 6. Nitrogen dioxide, also known as NO₂, is created when nitric oxide and oxygen in the air react. NO₂ can be seen as a red-brown gas.
2 NO (g, colorless) + O₂ (g) → 2 NO₂ (g, red-brown) ........(eq. 7)
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Aluminum has a density of 2.70 g/mL. What is the volume of 546 g of Al?
Answer:
222.2cm^2?
Explanation:
cos volume equals mass divided by density
Determine the number of Na+ and SO4 2- ions required to form a neutral ionic compound. What is the formula for the ionic compound?
Answer:
Na2SO4
Explanation:
Na+ has +1 charge
(SO4)-2 has -2 charge
so it takes 2 Na+ to balance 1 (SO4)-2
therefore Na2SO4
How many moles of CO2 are present in 118.6grams?
ANSWER
The number of moles of CO2 is 2.69 moles
EXPLANATION
Given that;
The mass of CO2 is 118.6 grams
Follow the steps below
[tex]\text{ mole = }\frac{\text{ mass}}{\text{ molar mass}}[/tex]The molar mass of CO2 is 44.01 g/mol
[tex]\begin{gathered} \text{ mole = }\frac{\text{ 118.6}}{\text{ 44.01}} \\ \text{ mole = 2.69 moles} \end{gathered}[/tex]Therefore, the number of moles of CO2 is 2.69 moles
QUESTION 1
How many bonding electrons are in the Lewis structure of N 2?
Answer:
6
Explanation:
What is the IUPAC name for the compound shown?
The IUPAC name of the compound given in the question is 2,2,3-trimethylpentane
How do I name organic compound?The naming of organic compounds has been made easier, owning to the the rules of the international union of pure and applied chemistry (IUPAC).
The IUPAC naming of organic compounds can be obtained by following these steps:
Locate the longest continuous carbon chain.Identify the substituent groups attached to the compound.Give the substituents groups the lowest count by identifying their location.Combine the above to get the name of the compound.With the above information in mind, we can name the compound as follow:
The longest continuous carbon chain is 5 i.e pentaneThe substituent group attached is methylThere are three methyl group of which two are located at carbon 2, and one at carbon 3Thus, the IUPAC name of the compound is:
2,2,3-trimethylpentane
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aining Time: 1 hour, 34 minutes, 56 seconds.tion Completion Status:QUESTION 81. How many moles of Cl atoms are in 4.32 moles of CC14? Show your set up and work- the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).vParagraphBIUSOpen Sans,sa... v10pt:E V>
17.28 moles of Cl atoms are present in 4.32 moles of CC14.
we have given data in the statement
4 Cl atoms in CC14.
then moles of Cl in CC14 = 4.32×4 = 17.28 moles
The mole idea is a useful way to indicate how much of a substance there is. Even one gram of a pure element is known to have an enormous number of atoms when working with particles at the atomic (or molecular) level. The mole idea is frequently applied in this situation. The unit of measurement that receives the most attention is the "mole," which is a count of a sizable number of particles.
Popularly known as the Avogadro constant, the quantity 6.02214076*10^23 is frequently represented by the letter "NA". Atoms, molecules, monoatomic and polyatomic ions, as well as other particles, are examples of the elementary entities that can be represented in moles (such as electrons).
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Solutions are found in many different places on earth, but one of the most common in our lives is soft drinks. Explain how a coke is a solution, how it is made, and how different factors like temperature and pressure can affect the character of asoft drink.
EXPLANATION:
Firstly, we need to define a solution
The solution is defined as a homogenous mixture of two or more substances in relative amounts that can be varied continuously.
Coke is an aqueous homogenous mixture of carbon dioxide, sugar, concentrate, etc The ingredient used in the production of coke are mixed in the right proportion and this make coke a homogenous solution
Temperature can affect the character of a coke. Carbonated soft drink tends to lose their fizz at high temperature. This is because as the temperature increases, the loss of carbon dioxide in the liquid will also increase.
Also, at high temperatures, the solubility of gases decreasese.
Calculating the average atomic mass from Isotope data
The relative atomic masses of the given elements are as follows:
Lead = 206.96 amuMagnesium = 24.62 amuSilicon = 28.08 amuWhat is relative atomic mass?Relative atomic mass is the sum of the product of the isotopic masses and the relative abundance of the isotopes of an element.
Relative atomic masses are averages.
The relative atomic masses of the given elements are calculated as follows:
1. Lead:
Relative atomic mass = (203.973 * 0.014) + (205.974 * 0.236) + (206.759 * 0.226) + (207.9766 * 0.523)
Relative atomic mass = 206.96 amu
2. Magnesium:
Relative atomic mass = (23.985 * 79.99) + (24.986 * 10%) + (25.983 * 11.01%)
Relative atomic mass = 24.62 amu
3. Silicon:
Relative atomic mass = (27.977 * 92.21%) + (28.976 * 4.70%) + (29.973 * 3.09%)
Relative atomic mass = 28.08 amu
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A piece of wood that measures 3.0 cm by 6.0 cm by 9.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water?
Answer:
A. 0.49 g/cm3
B. Yes
Explanation:
Volume of wood = 3 x 6 x 9 = 162 cm3
d = m/V = 80.0/162 = 0.49382716049 = 0.49 g/cm3
Since density of water is 1 g/cm3, density of wood is less so it will float in water.
Find the sum of their masses, (1 Fe atom + 2 Cl atoms) for a single FeCl2 molecule, show your work:
The molar mass is 126.75 g/mol.
From the Periodic Table of Elements we can find the atomic mass of Fe and Cl:
- Fe atomic mass: 55.85 g/mol
- Cl atomic mass: 35.45 g/mol
So, the sum of their masses for a single FeCl2 molecule is:
1 Fe atom + 2 Cl atoms
1 x 55.85 g/mol + (2 x 35.45 g/mol)
55.85 g/mol + 70.9 g/mol
126.75 g/mol
So, the molar mass for a single FeCl2 molecule is 126.75 g/mol.
How many atoms of each element are present in CH4?
In Methane, we have 1 carbon atom combining with 4 hydrogen atoms.
It can also be said as
1 mole C + 4 mole of H = CH₄
These atoms combine together to give us 1 mole of CH₄
In the question given, we have 1 mole of carbon and 4 moles of hydrogen.
However, the equation for the formation of CH₄ is quite different as it is formed by hydrogenation of ethyne or ethene.
[tex]\begin{gathered} C_2H_2+3H_2\rightarrow2CH_4 \\ C_2H_4+2H_2\rightarrow2CH_4 \end{gathered}[/tex]The above equation are some of the known ways to which methane is formed.
From the explanation above, we have 1 atom of C and 4 atoms of H
Calculate the mass of water produced when 6.26g of butane reacts with excess oxygen
The mass of water produced when 6.26g of butane reacts with excess of oxygen will be 9.78g.
According to given question, the reaction would be:
C₄H₁₀ + 13/2O₂ --- 4CO₂ + 5H₂O
6.26g 0 0
As we know,
(mole of C₄H₁₀)÷coefficient = (mole of H₂O)÷coefficient
6.26/molecular weight ÷ 1 = mass of H₂O/molecular weight ÷ 5
6.26÷58 = Mass of H₂O/18×5
Mass of H₂O = 9.78g
Therefore, the mass of water produced when 6.26gram of butane reacts in the presence of excess of oxygen will be 9.78gram.
The combustion of butane is a reaction between butane and oxygen gas that leads to the production of carbon dioxide gas and water. This hydrocarbon combustion reaction releases heat energy and is an example of an exothermic reaction.
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What is the identity of a 10.0 g metal sample that increases by 14.0 C when 62.9 J of energy is absorbed?
(The answer is Iron but I can't for the life of me remember how to correctly work the problem to get to that answer and am mainly seeking help with that)
Au: 0.128
Ag: 0.235
Cu: 0.385
Fe: 0.449
Al: 0.903
Specific heat capacity of metal is the amount of heat that is required to raise the temperature of metal by 1 degree Celsius. The metals which has specific heat capacity of 0.449J/K/g is Iron. Thus correct option is option C
What is Enthalpy?Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.
Mathematically,
Enthalpy=mass of metal ×specific heat capacity of metal ×Change in temperature.
mass of metal= 10.0 g
change in temperature= 14.0° C =14K
specific heat capacity of metal=?
Q= enthalpy= 62.9 J
Substituting all the given values
specific heat capacity of metal= 62.9 J÷( 10.0 g × 14.0 K )
= 0.449J/K/g
Therefore the metals which has specific heat capacity of 0.449J/K/g is Iron. Thus correct option is option C
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convert a mass of 8,467 cg to kg
Answer:
0.08467 kg
Explanation:
1 cg = 10^-5 kg
so 8,467 x 10^-5 = 0.08467 kg
The American Heart Association recommends to eat no more than 2,301mg of sodium per day. Convert the mass of
sodium to ounces, if 1 oz = 28.3459g. Use correct significant figures. 2301mg x (0.001g / 1 mg) x (1 oz/ 28.3459g) =
The mass of 2,301 grams of sodium in ounces is 0.0811757609 ounces.
The amount of sodium recommended by American heart association is 2301 mg. This limit should not be crossed in a day.
We have to convert Mass of sodium from mg to ounces.
We know,
1 ounce = 28.3459 grams.
We also know,
1 gram = 1000 milligrams.
So,
28.3459 grams = 28.3459 x 1000 milligrams.
28.3459 grams = 28345.9 milligrams.
1 ounce = 28345.9 mg.
1 mg = 1/28345.9 ounces
Weight of sodium 2301mg in ounces,
2301mg = 2301/28345.9 ounces
Dividing till last significant figure,
2301 mg = 0.0811757609 ounces.
Mass of sodium in ounces is 0.0811757609.
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3. What does this model show?
AA single type of atom bonded together
B An element because all the particles are the same
CA molecule because there is more than one type of atom
DAn element because there is more than one type of atom
HINT, HINT
Think about the definitio
atom, element, and mc
what these types of m
Answer:
A compound is a distinct group of atoms held together by chemical bonds. ... As we will now see, there are a variety of different ways to represent and draw
Explanation:
For the reaction CH4 + 202-> CO₂ + 2H₂O, how many moles of water are produced alongside 100g of carbon dioxide.
ANSWER
The number of moles of water produced is 4.54 moles
EXPLANATION
Given that:
[tex]\text{ CH}_4\text{ }+2O_2\text{ }\rightarrow\text{ CO}_2\text{ }+\text{ 2H}_2O[/tex]The mass of carbon dioxide is 100g
To find the moles of water, follow the steps below
Step 1: Calculate the moles of carbon dioxide using the formula below
[tex]\text{ Mole }=\text{ }\frac{\text{ mass}}{molar\text{ mass}}[/tex]Recall, that the molar mass of CO2 is 44.01 g/ mol
Step 2: Substitute the given data into the formula in step 1
[tex]\begin{gathered} \text{ mole }=\text{ }\frac{100}{44.01} \\ \text{ mole }=2.272\text{ moles} \end{gathered}[/tex]Step 3: Find the moles of water produced using a stoichiometry ratio
In the reaction above, 1 mole of CO2 is equivalent to 2 moles of H2O
Let x represent the number of moles of water
[tex]\begin{gathered} \text{ 1 mole CO}_2\text{ }\rightarrow\text{ 2 moles H}_2O \\ \text{ 2.272 moles CO}_2\text{ }\rightarrow\text{ x moles H}_2O \\ \text{ Cross multiply} \\ \text{ 1 mole CO}_2\text{ }\times\text{ x moles H}_2O\text{ }=\text{ 2 moles H}_2O\times2.272\text{ moles CO}_2 \\ \text{ Isolate x} \\ \text{ x }=\frac{2\text{ moles H}_2O\times2.272\cancel{molesCO_2}}{1\cancel{moleCO_2}} \\ \text{ x }=\text{ 2 }\times\text{ 2.272} \\ \text{ x }=\text{ 4.54 moles} \end{gathered}[/tex]Therefore, the number of moles of water produced is 4.54 moles
Sodium azide, NaN3, decomposes according to the following equation and produces N2 gas that inflates the SRS airbag when a car is involved in a serious collision. 2NaN3(s) 2Na(s) + 3N2(g) How many grams of sodium azide (molar mass=65.02 g/mol) is needed to inflate a 45.0-L airbag at 25C and a pressure of 809 torr? (Assume that the decomposition produces 100% yield.)
INFORMATION:
We know that:
- Sodium azide, NaN3, decomposes according to the following equation 2NaN3(s) → 2Na(s) + 3N2(g)
- We have an 45.0L airbag at 25°C and a pressure of 809 torr
And we must find how many grams of sodium azide are needed to inflate the airbag
STEP BY STEP EXPLANATION:
To find it, we need to use the Ideal Gas Law formula PV = nRT
Where,
P = pressure
V = volume
n = number of moles
T = temperature
R = gas constant
Is given that;
P = 809 torr
V = 45.0L
n = we need to calculate it
T = 25°C, converting to K, 25 °C + 273.15 = 298.15 K
R = 62.36 (L*torr)/(mol*K)
Now, replacing in the formula,
[tex]809\text{ torr}\cdot45\text{ L}=n\cdot62.36\frac{L\cdot torr}{mol\cdot K}\cdot298.15K[/tex]Now, solving for n
[tex]n=\frac{809torr\cdot45L}{62.36\frac{L\cdot torr}{mol\cdot K}\cdot298.15K}=1.9580mol[/tex]Now, using that molar mass of NaN3 = 65.02 g/mol, we can calculate the grams
[tex]1.9580mol\cdot65.02\frac{g}{mol}=127.3092g[/tex]Then, 127.3092 g are needed to inflate the airbag.
ANSWER:
127.3092 grams are needed to inflate the airbag.
26.What is the usual oxidation number of the lithium ion?Select one:a. -2b. -1c. +1d. +2
ANSWER
The usual oxidation state of lithium is +1
EXPLANATION
Lithium is a group 1 metal with an atomic number of 3. Its electronic configuration of lithium atom is written below as
[tex]\text{ }_3\text{Li }\rightarrow\text{ 1s}^22s^1[/tex]In the above configuration, lithium has one electron in its outermost shell. Hence, the valence of electron is 1
During chemical reaction, lithium will lose an electron to attain it octet structure and it will attain the electronic configuration of Helium
Since it will be losing one electron, therefore it usual oxidation number is +1u
If shallow infiltration is 25% and deep is 25% and runoff is 10% so it’s 40% evaporation in vegetation surface? How to explain that answer?
Both superficial and deep infiltration of water into the soil are possible. The soil receives the moisture it needs from shallow penetration to maintain the plants and trees mentioned above. Additionally, shallow infiltration may penetrate the soil and enter lakes and rivers further downstream.
After precipitation, water can enter the water cycle through two different processes: runoff and infiltration. Infiltration is water that seeps into the soil, whereas runoff is water that flows across the land's surface. Large amounts of water are moved via runoff across the Earth's surface, finally ending up in lakes and oceans.
The process of evaporation turns liquid water into gaseous water (water vapor). Evaporation is how water gets from the surface of the Earth to the atmosphere. Evaporation results from the dissolution of the bonds holding the water molecules together as a result of heat energy.
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The most powerful laser in the world fires a pulse at 25 fempto seconds producing 30
terawatts of power. In physical sciences, power (watt) = Energy (J or kg•m2•s-2)/time (s).
If the average laser fires 7.5 x 1020 photons in a pulse, then what is the wavelength of the light fired in the world’s most powerful laser?
The most powerful laser in the world fires a pulse at 25 fempto seconds producing 30 terawatts of power in physical sciences, power (watt) =Energy (J or kg•m²×s⁻²)/time (s)if the average laser fires 7.5 x 10²⁰ photons in a pulse, then wavelength of the light fired in the world’s most powerful laser is 37×10⁻¹⁰ nm
A laser is the device that emit a beam of coherent light through an optical amplification process
Here given data is
Energy = time × power
Energy = 25 × 30
Energy = 750 J
Photons = 7.5 x 10²⁰
We have to calculate wavelength = ?
Then the formula is E =hcλ where E = energy, h = plank constant, c= speed, λ = wavelength
λ = hcE
λ = 6.62×10⁺³⁴×7.5 x 10²⁰ ×750 J
λ = 37×10⁻¹⁰ nm
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Balance the following by the method of half reactions:
S2O32- + H2O + Cl2 --> SO42- + Cl- + H+
What are the total number of electrons transferred in the balanced half reactions?
From the method of half-reactions, the balanced equation of the reaction is given below:
S₂O₃²⁻ (aq) + H₂O (l) + 4 Cl₂ (g) ---> 2 SO₄²⁻ (aq) + 2 H⁺ (aq) + 8 Cl⁻ (aq)Eight electrons were transferred.
What are half-reactions?Half reactions are reactions that show the processes of oxidation and reductions that occur in a redox reaction as separate or individual reactions.
The half-reactions of the given equation are as shown below:
Oxidation:
Unbalanced - S₂O₃²⁻ (aq) + H₂O (l) ---> SO₄²⁻ (aq) + H⁺ (aq)
Balanced - S₂O₃²⁻ (aq) + H₂O (l) ---> 2 SO₄²⁻ (aq) + 8 e⁻ + 2 H⁺ (aq)
Reduction:
Unbalanced - Cl₂ ---> Cl⁻
Balanced - 4 Cl₂ (g) + 8 e⁻ ---> 8 Cl⁻ (aq)
Overall balanced equation: S₂O₃²⁻ (aq) + H₂O (l) + 4 Cl₂ (g) ---> 2 SO₄²⁻ (aq) + 2 H⁺ (aq) + 8 Cl⁻ (aq)
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The question in the photo And Q2 is chemically baking soda is NaHco3 T or F
EXPLANATION
What are indicators; Chemical indicators are a substance that gives a visible sign of the presence or absence of a required concentration of a chemical substance.
Examples of indicators are; litmus paper, methyl orange, phenolphthalein
Please help solve :)
Answer:
3. 175000 ml
5. 622 cl
7. 1570 ml
9. 440000 l
11. 327 kl
13. 204 kl
15. 8.943 cl
17. 696 kl
19. 287.000046 kl
23. 641 kl
25. 436000 l
Unfortunately, i couldn't read any other problems, only 3 through 25 (with 21 not being a problem)
Explanation:
The conversion units are:
1 ml = 1 ml
10 ml = 1 cl
100 ml = 1 dl (dl meaning deciliter)
1000 ml = 1 l
1 l = 1 l
10 l = 1 decaliter
100 l = 1 hl (hectoliter)
1000 l = 1 kl
For example, if i had 123 l and i wanted to convert it into ml. since 1 l equals 1000 ml, and 2 l equals two times 1000 ml would be 2000 ml, 123 l would equal 123 times 1000 ml which would be 123000 ml.
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Answer 2:
Rotation of the Earth: When the earth rotates on its own axis, not moving around its orbit but rotating on its tilted axis (23°). That motion is known as rotation.Revolution of the Earth: When the earth revolves in its orbit around the sun along with rotation which is being done on its own axis as well.Therefore, Earth is in two types of motion-
rotating on its own axis.revolving around the sun with its particular orbit.Answer 3:
In rotation, it takes 24 hours or a day to complete one rotation on its axis.In revolution, Earth takes 365 days 6 hours, and 9 minutes exactly, or say one year to complete one revolution around the sun.Answer 4:
Changes in the day and night occur due to the rotation of the earth. It also impacts ocean and air currents.Revolution causes changes in the weather and climate across the globe. Our seasons come and go periodically because of the revolution of the earth.Answer 5:
If the earth's rotation decrease by half of its original speed then, It will take 48 hours to complete one rotation as earlier it was taking 24 hours with the original speed. If speed is decreased to half, time doubles.The number of daylight changes from 12 hours to 24 hours.The number of darkness changes from 12 hours to 24 hours as earlier it was taking 12 hours each ( day and night).It will change our whole daily routine as the number of days and nights increases. The number of sleeping time, as well as working time, will increase respectively.It will take to make our habits according to the number of days and nights, however, they both will be equal, and therefore, it will have the same effect as before.To know more about the revolution's effects, find the below link:
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The total pressure of a mixture of CO2 and O2 is 1.03 atm. If the pressure of the CO2 is 560. torr, what's the pressure of O2 in mmHg?
The pressure (in mmHg) of O₂, given that CO₂ has a pressure of 560 torr is 222.8 mmHg
We'll begin by converting 1.03 atm to torr. This can be obtained as follow:
1 atm = 760 torr
Therefore,
1.03 atm = (1.03 atm × 760 torr) / 1 atm
1.03 atm = 782.8 torr
Next, we shall determine the pressure of O₂. This can e obtained as follow:
Total pressure = 782.8 torr Pressure of CO₂ = 560 torrpressure of O₂ =?Total pressure = pressure of CO₂ + pressure of O₂
782.8 = 560 + pressure of O₂
Collect like terms
Pressure of O₂ = 782.8 - 560
Pressure of O₂ = 222.8 torr
Finally, we shall convert 222.8 torr to mmHg. This is illustrated below
Recall
760 torr = 760 mmHg
Therefore,
222.8 torr = 222.8 mmHg
Thus, we can conclude that the pressure of O₂ is 222.8 mmHg
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A sample of gas has an initial volume of 8.90 L at a pressure of 825 mmHg. If the volume of the gas is increased to 14.7 L, what is its pressure (in atm)?
A sample of gas has an initial volume of 8.90 L at a pressure of 825 mmHg. If the volume of the gas is increased to 14.7 L, what is its pressure (in atm) is 0.65 atm.
According to boyle's law , we have
P1 V1 = P2 V2
P2 = (P1 V1 ) / V2
given that :
initial volume V1 = 8.90 L
pressure P1 = 825 mmHg = 1.08 atm
volume V2 = 14.7 L
solving the values in the formula , we get
P2 = (P1 V1 ) / V2
P2 = ( 1.08 × 8.90 ) / 14.7
P2 = 9.612 / 14.7
P2 = 0.65 atm
Thus, A sample of gas has an initial volume of 8.90 L at a pressure of 825 mmHg. If the volume of the gas is increased to 14.7 L, its pressure in atm is 0.65 atm.
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