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A buffer solution contains 0.402 M NaHSO2 and 0.248 M K S03. Determine the pH change when 0.071 mol HI is added to 1.00 L ofDetermine the pH change when 0.093 mol KOH is added to 1.00 L of a buffer solution that is 0.437 M in HCN and 0.257 M in CN.

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Answer #1

Butter solution The pH of a butter solution can be Calulated by using the Henderson-Hasselball equation, pH pka tlog [ Base]moles of m 100L of 0.248 m solution = 0.248 mole 12 0.402 0.248 mole moles of HI added = 0.071 mol so, the dissociation equil6 V wel = 9.2076 ECH PH a 9.2076+ log10:257) 00.43 6 thea] 0.437m first we calculate pH before addition of koh to butter systAccording to Henderson - Hasselbalch equation, pH aquating [EN] [HCM] = pH = 9.2076 trog (0.35 0.344 pH = 9.2115 so pH increa

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