Gas Laws and Molar Conversions

This video tutorial explains how to convert 46.22 grams of nitrogen gas into liters through a two-step process. First, the grams are converted to moles by dividing by the molar mass of nitrogen. Then, the moles are converted to liters using the standard temperature and pressure (STP) conversion factor of 22.4 liters per mole. The video provides a detailed walkthrough of each step, ensuring a clear understanding of the conversion process.

What is the first step in converting grams of nitrogen gas to liters?

• Convert moles to grams

• Convert liters to moles

• Convert grams to liters directly

• Convert grams to moles

What is the molar mass of nitrogen gas (N2) used in the conversion?

• 44.01 grams per mole

• 32.00 grams per mole

• 28.02 grams per mole

• 14.01 grams per mole

What is the purpose of dividing by the molar mass in the conversion process?

• To find the volume in liters

• To convert moles to grams

• To convert grams to moles

• To find the number of atoms

How many moles of nitrogen gas are obtained from 46.22 grams?

• 1.65 moles

• 2.00 moles

• 1.50 moles

• 2.50 moles

What is the volume of one mole of gas at standard temperature and pressure (STP)?

• 22.4 liters

• 24.0 liters

• 18.0 liters

• 20.0 liters

What is the final volume in liters of 1.65 moles of nitrogen gas at STP?

• 40.00 liters

• 30.00 liters

• 33.00 liters

• 36.95 liters

What is the significance of standard temperature and pressure (STP) in gas calculations?

• It is used to determine the color of gases

• It defines the temperature and pressure at which gases behave ideally

• It is used to measure the weight of gases

• It is used to calculate the density of gases

Why can't we convert directly from grams to liters?

• Because liters are not a unit of mass

• Because the conversion requires an intermediate step

• Because grams are not a unit of volume

• Because liters are not used in chemistry

What is the final step in converting moles of nitrogen gas to liters?

• Subtract the atomic mass

• Add the atomic mass

• Divide by the molar mass

• Multiply by 22.4 liters per mole