why do we use soap solution to test hydrogen gas ? why not any other solution ??
Answers
Answer:
Soap solution is prepared by dissolving the soap into the water resulting into its solution. ... So, since the hydrogen gas is not dissolved in water and results in the formation of bubbles, so therefore, the soap solution can be used in the testing of the hydrogen gas.
Explanation:
On passing hydrogen gas through soap solution it does not get dissolved in it and the solution easily forms bubbles containing hydrogen gas. The presence of hydrogen gas can be tested with the help of a burning splinter near the bubbles. Then the popping sound will come.
Soaps are sodium or potassium salts of long chain of fatty acids(which consists of long chain of hydrocarbon and a terminal carboxyl group) and its chemical formula is C17H35COO− along with either Na+ or K+ . It is mainly used for cleaning purposes and lubrication (means making the surface smooth). Although, it is a very good cleansing agent but it’s not very effective when it is used in the hard water which contains mineral salts in it and is responsible for its hardness.