Chemistry, 05.10.2019 19:40 jacquelinegonz

If i have an unknown quantity of gas at a pressure of 50.65 kpa, a volume of 25 liters, and a temperature of 300 k, how many moles of gas do i have?

if i have 21 moles of gas held at a pressure of 7901kpa and a temperature of 900 k, what is the volume of the gas?

if i have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas?

if i have 2.4 moles of gas held at a temperature of 97 0c and in a container with a volume of 45 liters, what is the pressure of the gas?

if i have an unknown quantity of gas held at a temperature of 1195 k in a container with a volume of 25 liters and a pressure of 560 atm, how many moles of gas do i have?

if i have 0.275 moles of gas at a temperature of 75 k and a pressure of 177.3 kpa, what is the volume of the gas?

if i have 72 liters of gas held at a pressure of 344.4kpa and a temperature of 225 k, how many moles of gas do i have?

Answers: 1

Show answers

Answers

Answer from: Roastedham1272

Q1: 0.51 mol.

Q2: 19.87 L.

Q3: 1604.62 K.

Q4: 1.62 atm.

Q5: 142.87 mol.

Q6: 0.966 L.

Q7: 13.26 mol.

Explanation:

To solve these problems, we can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant (R = 0.082 L.atm/mol.K),

T is the temperature of the gas in K.

Q1) If I have an unknown quantity of gas at a pressure of 50.65 kPa, a volume of 25 liters, and a temperature of 300 K, how many moles of gas do I have?

The no. of moles of the gas (n) = PV/RT.

P = 50.65 kPa/101.325 = 0.5 atm, V = 25.0 L, R = 0.082 L.atm/mol.K, and T = 300 K.

∴ n = PV/RT = (0.5 atm)(25.0 L)/(0.082 L.atm/mol.K)(300 K) = 0.51 mol.

Q2) If I have 21 moles of gas held at a pressure of 7901 kPa and a temperature of 900 K, what is the volume of the gas?

The volume of the gas = nRT/P.

n = 21.0 mol, R = 0.082 L.atm/mol.K, T = 900 K, and P = 7901 kPa/101.325 = 77.976 atm.

∴ V = nRT/P = (21.0 mol)(0.082 L.atm/mol.K)(900 K)/(77.976 atm) = 19.87 L.

Q3) If I have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas?

The temperature of the gas = PV/nR.

P = 5.0 atm, V = 50.0 L, n = 1.9 mol, R = 0.082 L.atm/mol.K.

∴ T = PV/nR = (5.0 atm)(50.0 L)/(1.9 mol)(0.082 L.atm/mol.K) = 1604.62 K.

Q4) If I have 2.4 moles of gas held at a temperature of 97 0C and in a container with a volume of 45 liters, what is the pressure of the gas?

The pressure of the gas = nRT/V.

n = 2.4 mol, R = 0.082 L.atm/mol.K, T = 97.0 C + 273 = 370.0 K, V = 45.0 L.

∴ P = nRT/V = (2.4 mol)(0.082 L.atm/mol.K)(370.0 K)/(45.0 L) = 1.62 atm.

Q5) If I have an unknown quantity of gas held at a temperature of 1195 K in a container with a volume of 25 liters and a pressure of 560 atm, how many moles of gas do I have?

The no. of moles of the gas (n) = PV/RT.

P = 560.0 atm, V = 25.0 L, R = 0.082 L.atm/mol.K, and T = 1195 K.

∴ n = PV/RT = (560.0 atm)(25.0 L)/(0.082 L.atm/mol.K)(1195 K) = 142.87 mol.

Q6) If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 177.3 kPa, what is the volume of the gas?

The volume of the gas = nRT/P.

n = 0.275 mol, R = 0.082 L.atm/mol.K, T = 75 K, and P = 177.3 kPa/101.325 = 1.75 atm.

∴ V = nRT/P = (0.275 mol)(0.082 L.atm/mol.K)(75.0 K)/(1.75 atm) = 0.966 L.

Q7) If I have 72 liters of gas held at a pressure of 344.4kPa and a temperature of 225 K, how many moles of gas do I have?

The no. of moles of the gas (n) = PV/RT.

P = 344.4 kPa/101.325 = 3.4 atm, V = 72.0 L, R = 0.082 L.atm/mol.K, and T = 225 K.

∴ n = PV/RT = (3.4 atm)(72.0 L)/(0.082 L.atm/mol.K)(225 K) = 13.26 mol.

Answer from: Quest

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

Answer from: Quest

have a great day because if you dont you and i will be sad

Another question on Chemistry

Chemistry, 21.06.2019 22:30

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Answers: 1

Answer

Chemistry, 22.06.2019 10:40

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

Answers: 2

Answer

Chemistry, 22.06.2019 16:50

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

Answers: 2

Answer

Chemistry, 22.06.2019 17:30

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

Answers: 2

Answer

You know the right answer?

If i have an unknown quantity of gas at a pressure of 50.65 kpa, a volume of 25 liters, and a temper...

Questions