Converting Grams and Moles

This video tutorial covers the conversion between grams and moles, focusing on practice problems involving sulfur dioxide (SO2) and ethanol (C2H6O). It explains how to calculate molar mass using the periodic table and demonstrates the conversion process from moles to grams and vice versa using conversion factors. The tutorial emphasizes the consistency of the mathematical approach in these conversions.

What is the main focus of this video tutorial?

• Converting between grams and moles

• Converting between atoms and moles

• Converting between liters and moles

• Converting between grams and liters

What is the molar mass of Sulfur dioxide (SO2)?

• 28.02 g/mol

• 32.07 g/mol

• 64.07 g/mol

• 44.01 g/mol

How do you calculate the mass in grams of a given number of moles of a substance?

• Multiply the number of moles by the molar mass

• Subtract the number of moles from the molar mass

• Divide the number of moles by the molar mass

• Add the number of moles to the molar mass

What is the mass in grams of 0.850 moles of SO2?

• 128.14 grams

• 54.5 grams

• 64.07 grams

• 32.03 grams

What elements make up ethanol (C2H6O)?

• Carbon, Oxygen, and Sulfur

• Carbon, Hydrogen, and Oxygen

• Carbon, Hydrogen, and Nitrogen

• Hydrogen, Oxygen, and Nitrogen

What is the molar mass of ethanol (C2H6O)?

• 32.04 g/mol

• 60.05 g/mol

• 18.02 g/mol

• 46.08 g/mol

How do you convert grams to moles for a given substance?

• Divide grams by the molar mass

• Multiply grams by the molar mass

• Add grams to the molar mass

• Subtract grams from the molar mass

How many moles are in 32.7 grams of ethanol (C2H6O)?

• 1.500 moles

• 1.000 moles

• 0.850 moles

• 0.710 moles

What is the conversion factor used for converting grams to moles?

• Grams on top, moles on bottom

• Moles on top, grams on bottom

• Grams on top, molar mass on bottom

• Molar mass on top, grams on bottom

What is the result of dividing 32.7 grams by the molar mass of ethanol?

• 1.000 moles

• 1.500 moles

• 0.850 moles

• 0.710 moles