Answer:
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)
