Find the mass fraction of water in CuSO4 * 5H2O.
| July 18, 2021 | education
The mass fraction of water in CuSO4 * 5H2O will be equal to the ratio of the molar mass of five water molecules to the molar mass of the salt.
Let’s find the molar mass of five water molecules.
M 5H2O = 18 x 5 = 90 grams / mol;
Let’s find the molar mass of the salt.
M CuSO4 * 5H2O = 64 + 32 + 16 x 4 + 18 x 5 = 250 grams / mol;
The mass fraction of water in CuSO4 * 5H2O will be equal to:
With 5H2O = 90/250 = 0.36 = 36%;
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