Calculate the mass fraction of oxygen in potassium oxide K2O and magnesium hydroxide Mg (OH) 2.

univerkov | August 22, 2021 | education

M K2O = 94 amu, the oxygen fraction is 16/94 * 100% = 17%.
M Mg (OH) 2 = 58 amu, the oxygen fraction is 16 * 2/58 = 55.1%.

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