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30 September, 23:10

How do you find the percent composition of CuBr2

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  1. 1 October, 02:12
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    Explanation: the molar mass of the whole compound is 223.35u

    now make ratios for each of the elements and multiply by 100%

    copper = 63.55/223.35 x 100 % comp of copper is 28.45%

    bromine = (79.9x2) / 223.35 x 100 %comp of bromine is 71.54%

    multiply bromines molar mass by 2 when calculating
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