What is the pH of a solution containing a 1.0 x 10−6 M solution of HCl?

1

6

1 x 106

1 x 10−6
The [OH−] of a given solution = 1.0 x 10−3 M. What is this solution's pOH?

1

3

7

11

One question is an image:

The answer is 6 for the first question and the answer for the second question is 3

Explanation:

HCl H + Cl

[H] = 1.0 * 10^-6

pH = -log [H], using this formula

pH = - log 1.0*10^-6

= 6

2. pOH = -log [OH]

Since the OH is 1.0*10^-3

Therefore, using the formula above

pOH = -log [1.0*10^-3]

= 3

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