Do the following conversions. Show your work with the units for each problem designated with a (*) Express your answer to the correct number of significant figures.

Convert each of the following to grams

1. 10.0 moles of Na*

2. 2.20 moles of Sn

3. 0.00456 moles if Ag

4. 5.00 moles if Au

5. 1.64 x 10^-5 moles of B