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17 July, 02:12

What is the percent by mass of chlorine in NaCl? 35.45% 39.34% 60.66% 70.90%

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  1. 17 July, 05:37
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    Molar mass NaCl = 58.44 g/mol

    atomic mass Cl = 35.45 amu

    therefore:

    Cl% = (atomic mass Cl / molar mass NaCl) * 100

    Cl % = (35.45 / 58.44) * 100

    Cl% = 0.606 * 100

    Cl = 60.66 %

    Answer C
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