A sample is 14% sodium chromate. What is

Question

the percent Cr in the sample?
Answer in units of %.

Answer 1

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.