How many molecules of H2O are equivalent to 98.2 g of H2O

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How many molecules of H2O are equivalent to 98.2 g of H2O

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Hưng Khoa 4 years 2021-08-07T05:34:47+00:00 1 Answers 7 views 0

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    2021-08-07T05:36:37+00:00
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    Answer:

    Demo Mole Quantities

    58.5g NaCl(mol/58.5g)(6.02 x 1023/mol) = 6.02 x 1023 Na

    +

    Cl21 pre-1982 pennies (after 1982 pennies are mostly zinc with copper coating)

    63.5g Cu( mol/ 63.5g)(6.02 x 1023/mol) = 6.02 x 1023 Cu

    19.0g Al (mol/27.0g)(6.02 x 1023/mol) = 4.24 x 1023 Al

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )