Suppose you have 150 mL of a buffer containing 0.100 M acetic acid and 0.0500 M sodium acetate. Calculate the pH of the buffer when (a) 5.00 mL of 1.00 M HBr is added to it and (b) when 5.00 mL of 1.00 M KOH is added to it. Ka = 1.75 x 10-5

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A: Answer: Part A) 22.6 mmol CH3COONa                 Part B) 151 ml

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Q: Calculate the pH in a titration of 40 mL (0.040 L) of 0.100 M barbituric acid (Ka = 9.8 × 10−5) with…

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Q: you mix 100. mL of 0.11 M HCl with 50.0 mL of 0.22 M NH3, what is the pH of the resulting solution?…

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Q: What is the pH of the buffered created by dissolving 60.0g HCN (MM= 27.0253 g/mol) and 60.0g KCN…

A: The PH can be calculated as follows

Q: 55.00 mL of 0.650 M benzoic acid (Ka = 6.4x10-5) is titrated by 0.600 M NaOH. Calculate the pH of…

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Q: Anisic acid (HC8H7O3) is found naturally in anise, a well-known culinary herb and flavouring agent.…

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Q: A 100.0 ml sample of a solution contains 2.00 x 10-3 M acetic acid (Ka= 1.8 x 10-5) and 1.00 M HCl.…

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Q: A chemist titrates 50.0 mL of a 0.4918M hydrocyanic acid (HCN) solution with 0.8729M KOH Solution at…

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Q: A 1.0L buffer is made at 25°C that consists of 0.80 mol of a weak acid HA and 0.80 mol of its…

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Q: Choose (please circle) the most effective buffer at pH 4.75 from the following.  1. 0.20M sodium…

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Q: Please use 3 significant figures or 3 decimal places. What is the pH of a buffer is prepared, 1.00…

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Q: A student titrates 20.00 mL of 0.300 M HCN (Ka of HCN = 4.9x10^-10) with 0.200 M NaOH. What is the…

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Q: A solution is made by mixing 205 mL of 0.100 M formic acid (Ka = 1.7 x 10-4 ) and 230. mL of 0.100 M…

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Q: Consider the titration of 25.00 mL of 0.100 M hydrofluoric acid, HF, with 0.100 M NaOH. What is the…

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Q: You are required to prepare a buffer (pH = 5.30) using propionic acid and sodium propionate. The…

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Q: Enter your answer in the provided box. Calculate the pH of a bicarbonate/carbonate buffer in which…

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Q: You have 500.0 mL of a buffer solution containing 0.250 M acetic acid (CH₃COOH) and 0.240 M sodium…

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Q: 1. 50.0 ml of 0.1 M NaOH is added to 100.0 ml of 0.2 M HCN (Ka=6.2x10-10). What is the pH of the…

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