Asked by Anonymous

A sample is 14% sodium chromate. What is
the percent Cr in the sample?
Answer in units of %.

Answers

Answered by DrBob222
percent Cr in Na2CrO4 = (atomic mass Cr/molar mass Na2CrO4)*100 = ? and that is approximately 30% but that's an estimate. Then
14% Na2CrO4 x about 0.30 = ?
Remember to calculate that %Cr yourself and get a good number.
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