why pumice stone is added to water while determining boiling point of water ?

Asked by janasati | 17th Feb, 2009, 05:36: PM

Expert Answer:

Pumice stone is added to facilitate the formation of bubbles so that "Bumping." can be prevented. It frequently happens, especially when the distillation has to be carried out under greatly reduced pressure, that the liquid is liable to boil with bumping. Thus we are able to measure the boiling point of water more accurately.

Answered by  | 19th Feb, 2009, 01:09: AM

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