Calculate the volume of hydrogen reacted with 15 liters of chlorine.

H2 + Cl 2 = 2HCl.
1) Find the amount of chlorine. To do this, we divide the volume of chlorine given in the problem statement by the molar volume: 15 / 22.4 = 0.7 mol.
2) According to the reaction equation, there is one mole of hydrogen per mole of chlorine. This means that the amount of hydrogen substance is 0.7 mol.
3) Find the volume of hydrogen. To do this, we multiply the amount of hydrogen substance by the molar volume: 0.7 * 22.4 = 15 liters – the answer.



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