4
practice testMultiple Choice

Practice Test

Question 4 • Chemistry

What is the percent by mass of water in Na2SO4⋅10⁢H2O? Use percent Element is equal to total mass of element in compound over molar mass of compound times 100

Answer
A
11 point 2 6 percent
B
5 point 5 9 percent
C
55 point 9 2 percent
D
44 point 0 8 percent
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What is the percent by mass of water in…