SOLUTION: What percent of weight Na2s203 is sulfur (S)? (na 23, S 32 O 16)?

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Question 64840This question is from textbook An Incremental Development
: What percent of weight Na2s203 is sulfur (S)? (na 23, S 32 O 16)? This question is from textbook An Incremental Development

Answer by tutorcecilia(2152) About Me  (Show Source):
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Na2=23*2=46g
S2=32*2=64g
O3=16*3=48g
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Total mass=158g
.
To find the percent of each compound, divide by the total mass:
Na2=46/158 = .291139 * 100%=29.11%
S2=64/158=.40506*100%=40.51%
O3=48/158=.30379*100%=30.38%
_________________________________
Total=100%