Determine the amount of chlorine (n.o.) required to obtain 100 l (n.o.) hydrogen chloride.

H2 + Cl2 -> 2HC1
According to the reaction, we see that chlorine and hydrogen react in a ratio of 1: 1, According to the equation, we also see that hydrogen chloride is formed 2 times more than each gas reacts. This means, according to the law of volumetric ratios, if 100 liters of hydrogen chloride are formed, then each gas should react 2 times less, i.e. 100l / 2 = 50l each.

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