Chemistry, asked by Rukshanaa14, 1 year ago

calculate the molecular mass

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Answers

Answered by pravin003
3
K2-2×39=78
Cr2-2×52=104
O2-2×16=32

total=78+104+32=214
Answered by MiSSiLLuSioN
5
heya....


The molar mass of Potassium dichromate or K2Cr2O7 is 294.185 g/mol or 294.2 g

K 2 mol × 39.10 g/mol = 78.20 g

Cr 2 mol × 52.0 g/mol = 104.00 g

O 7 mol × 16.00 g/mol = 112.00 g

Total = 294.2 g

Its density is 2.68 g/cm³.


hope it helps!!!!
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