# Problem: Calculate either [H3O+] or [OH–] for the solutions below at 25°C. a) [OH–] = 1.21 × 10–7 M     [H3O+] =  b) [H3O+] = 8.05 × 10–9 M     [OH–] =c) [H3O+] = 0.000589 M    [OH–] =Which of these solutions are basic at 25°C?

###### FREE Expert Solution
79% (180 ratings)
###### FREE Expert Solution
79% (180 ratings)
###### Problem Details

Calculate either [H3O+] or [OH] for the solutions below at 25°C.

a) [OH] = 1.21 × 107

[H3O+] =

b) [H3O+] = 8.05 × 109

[OH] =

c) [H3O+] = 0.000589 M

[OH] =

Which of these solutions are basic at 25°C?

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Our tutors have indicated that to solve this problem you will need to apply the pH and pOH concept. You can view video lessons to learn pH and pOH Or if you need more pH and pOH practice, you can also practice pH and pOH practice problems .

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Based on our data, we think this problem is relevant for Professor Robinson's class at UW-SEATTLE.