calculate the molecular mass
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K2-2×39=78
Cr2-2×52=104
O2-2×16=32
total=78+104+32=214
Cr2-2×52=104
O2-2×16=32
total=78+104+32=214
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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!!!!
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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