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11 September, 15:52

Maple syrup has a density of 1.325 g/ml, and 100.00 g of maple syrup contains 67 mg of calcium in the form of ca2 + ions. what is the molarity of calcium in maple syrup?

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  1. 11 September, 16:16
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    Density of maple syrup = 1.325 g/ml

    1000 ml contains 1325 g of maple syrup

    In 100 g of maple syrup - 67 mg of Ca ions

    Therefore in 1325 g of maple syrup - 67 mg / 100g * 1325 g

    = 887.75 mg of Ca

    this means in 1000 ml - 887.75 mg of Ca

    molar mass of Ca - 40 g/mol

    therefore number of moles in 1000 ml - 0.88775 g / 40 g/mol

    molarity of Ca - 0.022 mol/dm³
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