00:01
Okay, so you want to calculate the ph of a solution, or you know the ph of the solution, you want to know the concentration of hiding in.
00:08
So let's look at a.
00:10
So the formula to calculate the ph is ph equals negative log with a base of 10 with the concentration of hiding in.
00:20
Knowing this formula, let's go ahead and calculate the ph of number one, number eight.
00:25
Ph equals negative log with the base of 10, the concentration of the hydrogenium is 6 .7 times 10 to the negative 8.
00:37
Mole per liter is molar.
00:40
So from there, you have 7 .17.
00:45
According to the question, the ph is the 2 decimal place.
00:51
All right, so b, you have a solution that you know the ph, but you want to calculate the concentration of the hydraudonym.
00:58
Again, two significant digits.
00:59
So from there, we know that 10 .20 equals negative log with a base of 10 with the concentration of hydrogenium...