Determine the number of moles of gas in 45.0 liters of oxygen at STP.

a) 1.61 moles

b) 2.01 moles

c) 22.5 moles

d) 45.0 moles

Question

Chemistry

Jayleen Brown

23 December, 11:23

Determine the number of moles of gas in 45.0 liters of oxygen at STP.

a) 1.61 moles

b) 2.01 moles

c) 22.5 moles

d) 45.0 moles

+5

Answers (1)

Know the Answer?

Daniela Dean · Answer 1

The correct answer is b) 2.01 moles

Explanation:

We use the formula PV=nRT. The normal conditions of temperature and pressure are 273K and 1 atm, we use the gas constant = 0, 082 l atm / K mol.

1 atm x 45 l = n x 0, 082 l atm/K mol x 273 K

n = 1 atm x 45 l / 0, 082 l atm/K mol x 273 K

n = 2, 010184937 mol

Determine the number of moles of gas in 45.0 liters of oxygen at STP.a) 1.61 molesb) 2.01 molesc) 22.5 molesd) 45.0 moles

Determine the number of moles of gas in 45.0 liters of oxygen at STP.

a) 1.61 moles

b) 2.01 moles

c) 22.5 moles

d) 45.0 moles