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2 August, 04:18

It takes 12.5 mL of a 0.30 M HCl solution to neutralize 285 mL of NaOH solution.

What is the Molarity concentration of the NaOH solution?

13.15 M NaOH

1.5 M NaOH

0.15 M NaOH

0.013 M NaOH

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  1. 2 August, 04:37
    0
    0.013 M NaOH

    Step-by-step explanation:

    HCL + NaOH = NaCL + water

    The mole ratio of acid and base is 1:1

    Molarity is equal to the moles of solute divided by the liters of solution

    Solute mole = 12.5 * 10^-3 * 0.3

    = 0.003075

    To neutralize 0.00375mol of HCl, 0.00375 mol of NaOH will be required. Since molarity is moles per liter, divide this amount of moles by the volume in liters:

    Molarity = 0.00375/285 * 10^-3

    Molarity = 0.0131 M
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