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Author Question: What is the concentration of the acetate ion of an aqueous solution measured to be 0.20 M acetic ... (Read 102 times)

bobbie

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Question 1

What is the change in pH after addition of 10.0 mL of 1.0 M aqueous sodium hydroxide to 90.0 mL of an aqueous 1.0 M NH3/1.0 M NH4+ buffer? (Kb for ammonia is 1.8 × 10-5)
◦ 1.0 pH unit
◦ 0.1 pH unit
◦ 0.01 pH unit
◦ 0.001 pH unit
◦ zero

Question 2

What is the concentration of the acetate ion of an aqueous solution measured to be 0.20 M acetic acid in 0.20 M hydrochloric acid? (Ka for acetic acid = 1.8 × 10-5)
◦ 3.6 × 10-5 M
◦ 9.0 × 10-6 M
◦ 1.8 × 10-5 M
◦ 7.2 × 10-5 M
◦ 0.20 M


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Marked as best answer by bobbie on Jul 8, 2021

ebenov

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bobbie

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Reply 2 on: Jul 8, 2021
Gracias!


patma1981

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Reply 3 on: Yesterday
Wow, this really help

 

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