iGCSE Gas Calculations

What is the molar volume of a gas at STP?

• 22.4 liters per mole

• 1.5 liters per mole

• 10 liters per mole

• 50 liters per mole

Calculate the volume of 2 moles of gas at STP.

• 44.8 liters

• 448 liters

• 4.48 liters

• 22.4 liters

How many moles of gas are present in a 5 L container at STP?

• 0.223

• 0.447

• 0.335

• 0.112

What is the molar volume of a gas at standard conditions?

• 1.5 liters per mole

• 10 liters per mole

• 50 liters per mole

• 22.4 liters per mole

Calculate the volume of 0.5 moles of gas at standard conditions.

• 0.5 liters

• 5.6 liters

• 22.4 liters

• 11.2 liters

How many moles of gas are present in a 10 L container at standard conditions?

• 0.2232

• 0.4464

• 0.1128

• 0.6708

What is the molar volume of a gas at non-standard conditions?

• The molar volume of a gas at non-standard conditions is independent of the pressure.

• The molar volume of a gas at non-standard conditions is always equal to 24 L/mol.

• The molar volume of a gas at non-standard conditions is inversely proportional to the temperature.

• The molar volume of a gas at non-standard conditions can be calculated by dividing the volume by the number of moles.

Calculate the volume of 3 moles of gas at non-standard conditions.

• N/A

• The volume is equal to the number of moles divided by the molar volume.

• The volume is equal to the number of moles multiplied by the molar volume.

• The volume cannot be calculated without knowing the specific conditions.

How many moles of gas are present in a 8 L container at non-standard conditions?

• N/A

• 100 moles

• 10 moles

• 1 mole

What is the stoichiometric coefficient of oxygen gas in the balanced equation: 2H2 + O2 → 2H2O?

• 1

• 2

• 4

• 3