1 How many grams of SiO2 are in 7.22 X 1030 molecules? 2 How many molecules of HBr are in 4 grams?
3 How many molecules are in 2.03 moles NaOH?
4 How many moles are in 519.3 grams of PbNO3?
5 How many formula units are in 100g of NaCl?
6 How many moles are in 8.07 X 1025 atoms of Sulfur?
7 How many Bromine ions are found in 9.73g of MgBr2? 8 How many grams are in 7.23 x1022 molecules of C6H6?
10 How many nitrogen atoms are in 5.85 grams of trinitrogen trioxide? 11 How many moles are present in 4.77g of Carbon Tetrahydride?