Question #f1ab0

1 Answer
Jan 25, 2018

"0.422 mol Na"_2"SO"_40.422 mol Na2SO4

Explanation:

("60.0 g Na"_2"SO"_4)/(1)*("1 mol Na"_2"SO"_4)/("142.04 g Na"_2"SO"_4) = "0.422 mol Na"_2"SO"_460.0 g Na2SO41โ‹…1 mol Na2SO4142.04 g Na2SO4=0.422 mol Na2SO4

The "142.04 g/mol"142.04 g/mol came from getting the molar mass of "Na"_2"SO"_4Na2SO4 from the Periodic table.

Multiply across the top (60 * 1=60)(60โ‹…1=60) and then divide by the bottom (1*142.04=142.04)(1โ‹…142.04=142.04) to get 0.4220.422 moles.