Chem
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fun
100

What is the pH of a solution with a [H3O+] of 1.0 x 10-11. Is this solution acidic or basic?

11.00

Basic

100

Calculate the [H3O+] of a solution that has a pH of 12.5.

3 x 10-13

100

What is the pH of a solution that has a [H3O+] of 4.5 x 10-8. Is this solution acidic or basic?

7.35

Basic

200

2HF + 1Ca(OH)2 → 2H2O + CaF2

If HF is an acid, what is the Ca(OH)2?

What are the products?

Base

Water and Salt

200

Name this acid.

H2SO3

Sulfurous acid

200

Calculate the [H3O+] of a solution that has a pH of 2.23.

5.9 x 10-3

300

Name this acid. 

H3PO4

Phosphoric acid

300

Identify the Bronsted-Lowry acid and base in the reactants. Then identify the conjugate acid-base pairs.

HOCl + NH3 → NH4+ + ClO-

HOCl is the acid

NH3 is the base

NH4+ is the conjugate acid

ClO- is the conjugate base

300

What is the [H3O+] of a solution if [OH-] is 5.0 x 10-8 M?

2.0 x 10-7

400

Calculate the [H3O+] of a solution that has a pH of 7.9.

1 x 10-8

400

What is the pH of a solution with a [H3O+] of 5.5 x 10-7. Is this solution acidic or basic?

6.26

Acidic

400

What is the pH of a solution with a [H3O+] of 4.79 x 10-10. Is this solution acidic or basic?

9.320

Basic

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