Question 1 (0.3 points) An unknown weak acid is titrated with a strong base, and the pH at the half equivalence point is

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Question 1 0 3 Points An Unknown Weak Acid Is Titrated With A Strong Base And The Ph At The Half Equivalence Point Is 1 (38.99 KiB) Viewed 8 times

Question 1 (0.3 points) An unknown weak acid is titrated with a strong base, and the pH at the half equivalence point is 3.46. What is the unknown acid? HCHO [K₁ = 1.8 x 1041 HC10 [K=1.1 × 10²] 2² HC,H,O, [K₁ = 4.1 x 101 HF, [K, = 3.5 × 104] Question 2 (0.3 points) When titrating a weak acid with a strong base, the pH at the equivalence point will be greater than 7. What is the best explanation for this? At the equivalence point the major species present will be the weak acid of and water. At the equivalence point the major species present will be the conjugate base of the weak acid and water. At the equivalence point the major species present will be the hydroxide ion. At the equivalence point the major species present will be a neutral salt and water. Question 3 (0.4 points) A buffer solution is composed of 0.125 moles of NH, and 0.14 moles of NH C1. What is the pH of the buffer solution after the addition of 0.03 moles of HCI? The K for NH is 5.6 x 10-10 Your Answer: Answer