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March 28, 2017

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How many milliliters of 0.135 M HCl are needed to completely neutralize 56.0 mL of 0.101 M Ba(OH)2 solution?

  • Chemistry - ,

    You need an equation.
    Ba(OH)2 + 2HCl --> BaCl2 + 2H2O
    Think moles.'
    moles Ba(OH)2 = M x L = ??

    Using the coefficients in the balanced equation, convert moles Ba(OH)2 to moles HCl.
    ??moles Ba(OH)2 x (2 moles HCl/1 mole Ba(OH)2) = xx moles HCl

    Tben the definition of molarity is
    M = moles/L.
    You have moles HCl and M HCl, solve for L HCl and convert to mL.

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