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10 December, 11:43

A chemist weighed out 49.0 g of calcium. Calculate the number of moles of calcium she weighed out. Be sure your answer has the correct number of significant digits

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  1. 10 December, 12:57
    0
    1.22 mol Ca

    Explanation:

    Molar mass (Ca) = 40.1 g/mol

    49.0 g * 1 mol/40.1 g ≈ 1.22 mol Ca
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