Practice Problems

1) How many grams of hydrogen are needed to give 3 moles of hydrogen?

2) Convert 1000 grams of water to moles.

3) How many moles of sulfur dioxide, SO2 (g), are in 2000 grams of the gas?

4) A nurse injects a patient with 3.72 x 10-31 ´╗┐formula units of NaCl (aq) (iv solution or saline). How many mols is this?

5) Find the mass of one molecule of water.

6) Find the number of molecules of sucrose in a 1.000kg bag purchased at Sobey's.

7) How many moles are there in 2.00g of sucrose found in a mento?