MOLE CONVERSIONS ASSIGNMENT

CLASSWORK – Monday, February 14, 2011

DON’T FORGET…

· SHOW YOUR WORK

· ROUND YOUR ANSWERS FOR SIGNIFICANT FIGURES

· INCLUDE UNITS WITH YOUR ANSWERS

1.) 3.327 x 10²⁴ molecules OF₂ = ? moles

2.) 375 grams Zn(NO₃)₂ = ? moles

3.) 8.42 moles SiF₄ = ? molecules

4.) 2.1 x 10²⁴ molecules Fe₂O₃ = ? grams

5.) 137.5 grams NBr₃ = ? molecules

6.) 3.9 x 10²² molecules Rb₂CO₃ = ? grams

TURN IN ON TUESDAY, 2/15/11 IF YOU DON’T FINISH DURING CLASS!