Ethane and acetylene are two gaseous hydrocarbons. chemical analyses show that in one sample of ethane, 2.65 g of carbon are combined with 0.665 g of hydrogen, and in one sample of acetylene, 4.56 g of carbon are combined with 0.383 g of hydrogen. (a) are these results consistent with the law of multiple proportions? (b) write reasonable molecular formulas for these compounds.

Explanation:

in ethane :-

2.65 g of carbon reacts with 0.665 g of hydrogen

1 g of carbon reacts with .665/2.65 = 0.2509 g of hydrogen

now in the acetylene

4.56 g of carbon reacts with 0.383 g of hydrogen

1 g of carbon reacts with 0.383/4.56= 0.08399 g of hydrogen.

ratio of hydrogen reacting with 1 g of carbon is aas follows

ratio of hydrogen =0 .2509/ 0.08399 =2.98 or 3/1 approx which is a ratio of small whole nos.

b) . CH₃ - Ethane

CH- Acetylene.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.