Molar Mass and Atomic Structure

The video tutorial explains how to calculate the molar mass of sulfur tetrafluoride (SF4). It begins by identifying sulfur on the periodic table and noting its atomic mass. Then, it calculates the contribution of four fluorine atoms to the molar mass. Finally, it sums these values to find the total molar mass of SF4, which is 108.07 grams per mole. The video concludes with a note on possible variations in the result due to different rounding conventions on periodic tables.

What is the atomic mass of sulfur as found on the periodic table?

• 16.00 grams per mole

• 32.00 grams per mole

• 19.00 grams per mole

• 108.07 grams per mole

How many fluorine atoms are present in sulfur tetrafluoride (SF4)?

• 4

• 1

• 3

• 2

What is the atomic mass of fluorine used in the calculation?

• 16.00 grams per mole

• 19.00 grams per mole

• 32.00 grams per mole

• 108.07 grams per mole

What is the calculated molar mass of SF4?

• 19.00 grams per mole

• 32.00 grams per mole

• 127.00 grams per mole

• 108.07 grams per mole

Why might the molar mass of SF4 differ slightly when calculated using different periodic tables?

• Due to different temperatures

• Due to different chemical formulas

• Due to different rounding conventions

• Due to different atomic numbers