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24-01-2024
Chemistry

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What is the pH of a buffer solution that is 0.10 M NH₃ and 0.10 M NH₄⁺? What is the pH if 12 mL of 0.20 M hydrochloric acid is added to 125 mL of buffer?

a) pH = 9.21; pH after addition = 8.74

b) pH = 8.74; pH after addition = 5.00

c) pH = 5.00; pH after addition = 4.32

d) pH = 4.32; pH after addition = 3.89

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