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What is the percentage of water in the following compound? Sodium carbonate decahydrate, Na2CO3 • 10H2O % by mass H2O
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What is the percentage of water in the following compound?

Sodium carbonate decahydrate, Na2CO3 • 10H2O
% by mass H2O

User Mister M
by
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1 Answer

7 votes
M(Na2CO3•10H2O)=23*2+12+16*3+180=286g/mol
So lets take 1 mol of this compound
m(comp)=286 gram
m(H2O)=180 gramm
w(h2o)=180/286=0.6293(62.93%)
Answer 62.93% water

User Yahfoufi
by
6.8k points
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