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Calculate molar mass |
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Calculations: Formula: H2Cr2O7 Molar Mass: 218.0008 g/mol 1g=4.58713912976466E-03 mol Percent composition (by mass): Element Count Atom Mass %(by mass) H 2 1.0079 0.92% Cr 2 51.996 47.7% O 7 15.999 51.37% |
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