Homework Answers
9.Ans :-
6 M HCl means, 6 moles of HCl are present in 1 L of the solution while 12 M HCl means that 12 moles of HCl presents in 1 L of the solution. Due to difference in number of moles of acid HCl, both the solutions will be different.
# 6 M HCl solution will less concentrated or more diluted (because moles HCl or H+ are less) and will have low pH value that will be more acidic.
# On the other hand, 12 M HCl solution will be more concentrated or less diluted (because moles HCl or H+ are more) and will have more pH value that is will be less acidic.
# HCl do not gives any reaction with CaCl2.
This conclude that dilute solution of acid will be more acidic than concentrated solution of acid.
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