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24 August, 11:55

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal

Ca+2HCl - - > CaCl2 + H2

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  1. 24 August, 15:22
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    Ca + 2HCl = CaCl₂ + H₂

    m (Ca) = 60 g

    c=1.25 mol/l

    M (Ca) = 40g/mol

    v-?

    m (Ca) / M (Ca) = m (HCl) / [2M (HCl) ]=n (HCl) / 2

    n (HCl) = 2m (Ca) / M (Ca)

    n (HCl) = cv

    cv=2m (Ca) / M (Ca)

    v=2m (Ca) / {cM (Ca) }

    v=2·60g/mol/{1.25mol/l·40g/mol}=2.4 l = 2400 ml

    2400 milliliters of a 1.25 molar HCl solution would be needed
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