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Equilibrium Formative

Last updated almost 5 years ago

6 questions

Note from the author:

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This has been created as part of PD April 2021 for Bishop McDevitt High School.

Question 1

1.

Question 2

2.

In your own words, describe the composition and purpose of a chemical buffer.

Question 3

3.

What is the pH of a 0.577M solution of Acetic Acid? The Ka for acetic acid =

Question 4

4.

1

Question 6

6.

15.5 mL of 0.100M HBr is added to 250. mL of a buffer solution composed of 0.350M NaF and
0.204M HF. What is the final pH of this system after the addition of the acid?

The Ka of HBr = 7.2 x 10^(-4)

Which of the following mixtures would be classified as a buffer?

perchloric acid + sodium perchlorate

chlorous acid + sodium chlorite

sulfuric acid + sodium bisulfate

hydrofluoric acid + sodium fluoride

Which of the following salts would produce an acidic solution when dissolved in water?

sodium sulfate

ammonium chloride

calcium hypochlorite

benzoic iodide

Question 5

5.

What weak acid is formed during the carbonation of water-based drinks?

hydrochloric acid

carbonic acid

hypochlorous acid

sulfurous acid