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DIRECTION: HOW MANY MOLES CONTAIN EACH OF THE FOLLOWING

a.4.65 x 10^24 atoms Cu
b. 2.75 x 10^25 molecules CH4
find the molar mass
1. CCI
2. C6 H12 O6

A. HOW MANY ATOMS ARE IN EACH OF THE FOLLOWING SAMPLES

a. 44.2g Mg
b. 0.582kg SIO2

B. CALCULATE THE MASS IN GRAMS OF EACH OF THE FOLLOWING SAMPLES.

a. 6.02 x 10^25 formula units ZnCI2

b. 8.35 x 10^21 molecules CH4

A. CALCULATE THE PERCENT COMPOSITION FOR THE FOLLOWING COMPOUNDS.