Composition Stoichiometry

328 g  Al(OH)3 is how many moles?  Report your answer with the proper number of significant figures.

8.8 x 1022 atoms of sulfur is how many moles?  Report your answer with the proper number of significant figures.

7.3 x 1022 molecules of water is how many moles?  Report your answer with the proper number of significant figures.

8.3 x 1021 atoms of carbon is how many grams?  Report your answer with the proper number of significant figures.

8.8 x 1022 molecules of HCl is how many grams?  Report your answer with the proper number of significant figures.

How many molecules of SO2 are present in 79g SO2{____ x 1023 molecules SO2}.  Report your answer with the proper number of significant figures.

How many molecules of SO2 are present in 84g SO2{____ x 1023 molecules SO2}.  Report your answer with the proper number of significant figures.

How many atoms of boron are present in 5.9g boron? {____ x 1023 atoms B}.  Report your answer with the proper number of significant figures.

 
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