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25 August, 08:19

How many grams of water can be produced from 15 grams of hydrogen

2H2 + O2 - > 2H2O

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  1. 25 August, 08:46
    0
    135g

    Explanation:

    The equation for the reaction is given below:

    2H2 + O2 - > 2H2O

    Next, let us calculate the mass of H2 that reacted and the mass of H2O produced from the balanced equation. This is illustrated below:

    Molar Mass of H2 = 2x1 = 2g/mol

    Mass of H2 from the balanced equation = 2 x 2 = 4g

    Molar Mass of H2O = (2x1) + 16 = 2 + 16 = 18g/mol

    Mass of H2O from the balanced equation = 2 x 18 = 36g

    From the balanced equation,

    4g of H2 produced 36g of H2O.

    Therefore, 15g of H2 will produce = (15x36) / 4 = 135g of H2O

    From the calculations made above, 15g of H2 produced 135g of water (H2O)
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