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22 November, 23:10

Determine how many grams of N2 are produced from the reaction of 8.37 g of H2O2 and 5.29 g of N2H4.

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  1. 22 November, 23:15
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    N₂H₄ + 2H₂O₂ → N₂ + 4H₂O

    mol = mass : molar mass

    If mass of hydrazine (N₂H₄) = 5.29 g

    then mol of hydrazine = 5.29 g : ((14 * 2) + (1 * 4))

    = 0.165 mol

    mole ratio of hydrazine to Nitogen is 1 : 1

    ∴ if moles of hydrazine = 0.165 mol

    then moles of nitrogen = 0.165 mol

    Mass = mol * molar mass

    Since mol of nitrogen (N₂) = 0.165

    then mass of hydrazine = 0.165 * (14 * 2)

    = 4.62 g
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