00:01
Hello everyone, my name is ahmad ali.
00:02
In this question, we found that the bh will decrease in the solution c.
00:09
So why this? first of all, we can say at a star, the solution only containing 0 .7 molar of k -o -h.
00:21
So the value of b -o -h is equal negative load, the concentration of oh negative, which is 0 .7 .7.
00:31
Because this is a strong case, so it will be completely ionized.
00:36
So the result will be 0 .155, so the value of ph will be 14 negative to the value of b -o -h, so it will be equal 13 .845.
00:54
So then, when the solution is 0 .7 molar k -o -h, and we add equal volume of 0 .6 molar in a .o .h.
01:11
So what will be the concentration of hydroxide now? the concentration of hydroxide will be the following...