1. How many atoms are in 3 mol  of atoms? Express your answer using four significant figures.

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1. How many atoms are in 3 mol  of atoms? Express your answer using four significant figures.

2.How many molecules are in 6 m  of molecules?

Express your answer using four significant figures.

3. Calculate the mass in grams of each sample.

A. 7.02×1020H2O molecules

Express your answer using three significant figures.

B.2.7×1022SO2 molecules

Express your answer using two significant figures.

C.5.9×1025O3 molecules

Express your answer using two significant figures.

D. 9.38×1019CH4 molecules

Express your answer using three significant figures.

4. How many atoms are in each elemental sample?

A.2.7 mol 

B.29.1 mol Hg

Express your answer using three significant figures.

 

Express your answer using two significant figures.

1. How many atoms are in 3 mol  of atoms? Express your answer using four significant figures.

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