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4 November, 13:27

Tartaric acid, h2c4h4o6, has two acidic hydrogens. the acid is often present in wines and precipitates from solution as the wine ages. a solution containing an unknown concentration of the acid is titrated with naoh. it requires 21.65 ml of 0.3000 m naoh solution to titrate both acidic protons in 50.00 ml of the tartaric acid solution. part a write a balanced net ionic equation for the neutralization reaction.

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  1. 4 November, 13:36
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    Balance Chemical equation:

    C4H6O6 + 2NaOH ⇒ Na2C4H4O6 + 2H2O

    Given dа ta:

    Molarity of NaOH = 0.3000

    Vol. of NaOH = 21.65

    Solution:

    moles of NaOH = (0.3000 * 21.65) : 1000 = 0.0064 mol

    According to balance chemical equation

    NaOH : C4H6O6

    2 : 1

    0.0064 = (1/2) * 0.0064 = 0.0032 mol

    So these 0.0032 mol of tartaric acid are prsent in 50.0 ml of solution.

    So in I littre of solutions, its concentration will be as follow

    M = 0.0032 * 1000/50 = 0.064 M

    Result:

    The concentration of acid will be 0.064 M.
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