MOLE CONVERSIONS ASSIGNMENT- CLASSWORK – Wednesday, 9/14/11
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 THURSDAY, 9/15/11 IF YOU DON’T FINISH DURING
CLASS!