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15 March, 02:49

You need to dissolve CaCl2 in water to make a mixture that is 40.0% calcium chloride by mass. If the total mass of the mixture is 370.9g, what masses of CaCl2 and water should be used?

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  1. 15 March, 03:26
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    In order to calculate for the amount of CaCl2 and water used we need to multiply the total amount mixture to the percentage of each component. Since we are given a two component mixture CaCl2-water with 40% CaCl2 by mass, therefore we have 60% water.

    Amount of CaCl2 = 0.40 * (370.9) = 148.36 g of CaCl2

    Amount of Water = 0.60 * (370.9) = 222.54 g of Water
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