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10 February, 15:17

A 45.0-ml sample of nitric acid solution is neutralized by 119.4 ml 0.200M NaOH solution. What is the molarity of the nitric acid solution?

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  1. 10 February, 16:46
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    The molarity of nitric acid solution is = 0.53M

    calculation

    calculate the moles of NaOH

    moles = molarity x volume

    = 119.4 x0.200 = 23.88 moles

    write the equation for reaction

    NaOH + HNO3 = NaNO3 + H2O

    by use of mole ratio between NaOH to HNO3 which is 1:1 the moles of HNO3 is also = 23.88 moles

    molarity = moles/volume

    23.88/45 = 0.53 M
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