Answer
Please see the work below.
Work Step by Step
We divide each amount of chlorine that is 1.270 g and 1.904 g by the lower amount 1.270 g. Thus, we obtain 1.000 and 1.499 respectively. We convert these whole numbers by multiplying by 2 and get 2.000 and 2.998. The ratio of these amounts of chlorine is 2:3. It is consistent with the law of multiple proportions, as for a fixed mass of iron the masses of chlorine in the other two compounds are in a ratio of small whole numbers.
