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28 June, 18:46

What is the weight in grams of 3.36 * 1023 molecules of copper sulfate (CuSO4) ?

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  1. 28 June, 18:57
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    Molar mass of cuso4=63.5+32+4*16 = 159.5 g

    6.02*10^23 molecules weigh=159.5 g

    1 molecule weigh=159.5/6.02*10^23 g

    3.36 * 10^23 molecules weigh=159.5/6.02*10^23*3.36 * 10^23

    =89.023g
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