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3 October, 06:46

What mass of h2so4 would be required to react with 0.75 mol of naoh? what mass of each product if formed by this reaction?

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  1. 3 October, 08:54
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    1) State the balanced chemical reaction

    H2SO4 + 2NaOH - > Na2SO4 + 2H2O

    2) State the molar ratios:

    1 mol H2SO4 : 2 mol NaOH

    3) Set the proportions using the number of moles of one rectant and x for the unknown one>

    1 mol H2SO4 / 2 mol NaOH = x mol H2SO4 / 0.75 mol NaOH

    => x = 0.75 mol NaOH * [1 mol H2SO4 / 2 mol NaOH]

    x = 0.375 mol H2SO4

    4) Calculate the mass using the molar mass of H2SO4, MM.

    MM = 2*1g/mol + 32.1 g/mol + 4*16 g/mol = 98.1 g/mol

    mass = # of moles * molar mass = 0.375 mol * 98.1 g/mol = 36.79 g.

    Answer: 36.8 grams
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