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How many moles of HCl need to be added to 150.0 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3 × 10–5)? Assume negligible volume of the HCl.


▸ 6.8 × 10–3

▸ 7.5 × 10–2

▸ 5.0 × 10–1

▸ 1.0 × 10–3

▸ None of these are correct.
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Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
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You make an excellent tutor!
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