Unit: Chemical Quantities

"Molar Mass - 2 step" - Wksh #3

Directions: Use dimensional analysis to perform the following calculations. Show all

work, (K and U) include your units and box your final answers.

1. How many molecules are in 13. 5 g of sulfur dioxide, SO2?

2. What is the mass of 2. 23 x 1023 atoms of sulfur?

3. How many formula units of silver fluoride, AgF, are equal to 42. 15 g of this substance?

4. What is the mass of 8. 83 x 1023 formula units of Iron (III) oxide, Fe2O3?