Asked by Julie

What si the pH of a solution of 10^-8 M HCl in H2O?
Answered by bobpursley
It is a trick question. This HCl is very dilute, the H+ contribution from it is 1/10th the contribution from the water (H+=10^-7).

So here, the H+ is 1.1*10^-7.

pH=-log(1.1*10^-7)=6.96...hardly acid, of course.
Answered by wynneh
A bag contains a mixture of copper and lead BBs. The average density of the BBs is 9.60 .Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB.
Express your answers numerically separated by a comma.
Answered by jada Rickerson
8.3
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