Lisa asked in Science & MathematicsChemistry · 11 months ago

Rank the following compounds in terms of their theoretical mass percent water. Rank the compounds from least percentage of water to greatest?

CaCl2 2H2O, COCl2 • 6H2O, CuSO4 • 5H2O, MgSO4 • 7H2O, Sr(NO3)2 • 4H2O.

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  • Anonymous
    11 months ago

    Calculate the mass % of water in each. Rank in order.

    Take the example of CuSO4 • 5H2O. 1 mole of CuSO4 has 5 moles of water.

    1 mole of CuSO4 = 159.61 g. 5 moles of water = 5 * 18.016 g

    mass % water = ( 5 * 18.016 g ) / (1 * 159.61 g + 5 * 18.016 g ) * 100

    Repeat for the others. You might be able to do it just with using Google.

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