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chemistry

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To prepare the titrant fo amonia nitrogen analysis an analyst weight out 1.20 grams of concentration 98% sulfuric acid and brings to 1000 ml in lab pure water. if the molecular weight is 98 calculate the normality of the solution this analyst has prepare.

  • chemistry -

    One NEVER knows the normality of a solution unless the equation is known. I assume that you are titrating both H atoms of the H2SO4; therefore, the equivalent weight is 1/2 the molecular weight (or 49 g).
    mass H2SO4 = 1.20 g x 0.98 = ?? g
    ??g/49 = # equivalents and since that is in 1 L, the is the normality.

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