Question

carbon and hydrogen combine to form three compounds A,B,C .the percentage of hydrogen in these compounds are 25, 14.3, 7.7 respectively show that data illustrates law of multiple proportion​

Answer 1

Explanation:

The percentages of hydrogen in A,B and C are 25,14.3 and 7.7 respectively.Let us fix 1g of hydrogen as the fixed weight in the three compounds

In the first compound

Weight of hydrogen =25.0g

Weight of carbon =100−25=75.0g

25.0g of hydrogen have combined with carbon =75.0g

1.0g of hydrogen has combined with carbon =75.025.0g=3g

In the second compound

Weight of hydrogen =14.3g

Weight of carbon =100−14.3=85.7g

14.3g of hydrogen have combined with carbon =100−14.3=85.7g

14.3g pf hydrogen have combined with carbon =85.7g

1.0g of hydrogen has combined with carbon =85.714.3g=6g

In the third compound

Weight of hydrogen =7.7g

Weight of carbon =100−7.7=92.3g

7.7g of hydrogen have combined with carbon =92.3g

1.0g of hydrogen has combined with carbon =92.37.7g=12g

Ratio by weight of carbon which combine with 1g of hydrogen in the three compounds is 3:6:12or1:2:4. As the ratio is simple whole number in nature, the Law of Multiple Proportions is proved.