Molar Mass and Conversion Techniques

This video tutorial demonstrates how to convert 1.36 moles of sulfur dioxide (SO2) to grams. It begins by explaining the need to multiply the number of moles by the molar mass of SO2, which is calculated using the periodic table. The molar mass of SO2 is found to be 64.07 grams per mole. The video then shows the conversion process, resulting in 87.14 grams of SO2. It concludes with a recap and explains how to reverse the process by converting grams to moles.

What is the first step in converting moles of a substance to grams?

• Subtract the atomic masses

• Divide by the molar mass

• Multiply by the molar mass

• Add the atomic numbers

How do you find the molar mass of a compound like SO2?

• By multiplying the atomic numbers of its elements

• By adding the atomic masses of its elements

• By subtracting the atomic numbers of its elements

• By dividing the atomic masses of its elements

What is the molar mass of sulfur dioxide (SO2) used in the video?

• 128.14 grams per mole

• 16.00 grams per mole

• 64.07 grams per mole

• 32.07 grams per mole

After calculating the molar mass, what is the next step to find the grams of SO2?

• Divide the moles by the molar mass

• Multiply the moles by the molar mass

• Add the moles to the molar mass

• Subtract the moles from the molar mass

What is the result of converting 1.36 moles of SO2 to grams?

• 64.07 grams

• 128.14 grams

• 32.07 grams

• 87.14 grams

How would you convert grams of SO2 back to moles?

• Multiply by the molar mass

• Divide by the molar mass

• Add the molar mass

• Subtract the molar mass