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30 November, 02:51

10. How any grams of N He are required to produce 120 grams of HNO3, assuming H2O2 is present in

excess?

N2H4 + 7 H2O2 → 2 HNO3 + 8 H2O

H2O2

N2H4

32

HNO3

63

H2O

18

34

Molar Mass

(g/mol)

+2
Answers (1)
  1. 30 November, 06:32
    0
    30.48g of N2H4

    Explanation:

    Step 1:

    The balanced equation for the reaction. This is given below:

    N2H4 + 7H2O2 → 2HNO3 + 8H2O

    Step 2:

    Determination of the mass of N2H4 that reacted and the mass HNO3 produced from the balanced equation. This is illustrated below:

    Molar mass of N2H4 = (14x2) + (4x1) = 32g/mol

    Mass of N2H4 from the balanced equation = 1 x 32 = 32g

    Molar Mass of HNO3 = 1 + 14 + (16x3) = 63g/mol

    Mass of HNO3 from the balanced equation = 2 x 63 = 126g

    Summary:

    From the balanced equation above,

    32g of N2H4 reacted to produce 126g of HNO3.

    Step 3:

    Determination of the mass of N2H4 required to produce 120g of HNO3. This is illustrated below:

    From the balanced equation above,

    32g of N2H4 reacted to produce 126g of HNO3.

    Therefore, Xg of N2H4 will react to produce 120g of HNO3 i. e

    Xg of N2H4 = (32 x 120) / 126

    Xg of N2H4 = 30.48g

    Therefore, 30.48g of N2H4 is required to produce 120g of HNO3.
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