Asked by  | 29th Jan, 2009, 05:13: PM

Expert Answer:

Acids only disassociate in water. If the HCl is a gas and the litmus paper is dry, there is no moisture for the H+ to disassociate, and litmus paper only measures pH, which is the concentration of H+, not the concentration of acid.

Answered by  | 30th Jan, 2009, 02:06: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.