What is the of a solution of potassium hydroxide?
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A 16.6 mL sample of a 0.500 M aqueous nitrous acid solution is titrated with a 0.384 M aqueous potassium hydroxide solution. What is the pH at the start of the titration, before any potassium hydroxide has been added? pH =
50.0 mL of a .100 M nitric acid solution is titrated with .400 M potassium hydroxide solution. What is the pH after 15.00 mL of potassium hydroxide solution has been added? (hint: your answer should contain three significant figures)
PART 1: A buffer solution contains 0.431 M KH2PO4 and 0.289M K2HPO4. If 0.0304 moles of sodium hydroxide are added to 125mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding sodium hydroxide) pH =
PART 2:A buffer solution contains 0.431 M ammoniumbromide and 0.342 M ammonia. If 0.0288 moles of potassium hydroxide are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not change upon adding potassium hydroxide) pH =