Which of the following mixture would result in a buffer solution. Give a brief explanation. (Image) 2) Calculate the pH of a buffer that was made by mixing 45 mL of 0.01M aqueous hydrocyanic acid; (HCN, Ka = 6.2 x 10-10) with 11 mL of 0.02M aqueous potassium hydroxide

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1) Which of the following mixture would result in a buffer solution. Give a brief explanation. (Image)

2) Calculate the pH of a buffer that was made by mixing 45 mL of 0.01M aqueous hydrocyanic acid; (HCN, Ka = 6.2 x 10-10) with 11 mL of 0.02M aqueous potassium hydroxide (KOH).

i.
100 mL of 0.1M sodium acetate (NaOAc) + 50 mL of 0.1M hydrobromic acid
(HBr).
ii.
50 mL of 0.01M acetic acid (HOAC) + 150 mL of 0.01M sodium hydroxide (NaOH).
ii.
100 mL of 0.02M sodium fluoride (NaF) + 50 mL of 0.02M potassium hydroxide
(КОН).
Transcribed Image Text:i. 100 mL of 0.1M sodium acetate (NaOAc) + 50 mL of 0.1M hydrobromic acid (HBr). ii. 50 mL of 0.01M acetic acid (HOAC) + 150 mL of 0.01M sodium hydroxide (NaOH). ii. 100 mL of 0.02M sodium fluoride (NaF) + 50 mL of 0.02M potassium hydroxide (КОН).
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