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Author Question: What volume of 0.0500 M sodium hydroxide should be added to 250. mL of 0.100 M HCOOH to obtain a ... (Read 57 times)

madimontg

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Question 1

What pH range is a HOCl – NaOCl buffer effective?
◦ pH 2.0 – pH 4.0
◦ pH 7.5 – pH 9.5
◦ pH 6.5 – pH 8.5
◦ pH 6.5 – pH 9.5
◦ pH 1.0 – pH 14.0

Question 2

What volume of 0.0500 M sodium hydroxide should be added to 250. mL of 0.100 M HCOOH to obtain a solution with a pH of 4.50?  [Ka(HCOOH) = 1.7 × 10–4]
◦ 540 mL
◦ 420 mL
◦ 80. mL
◦ 340 mL
◦ 500. mL


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Marked as best answer by madimontg on Nov 5, 2023

Sha

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madimontg

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Reply 2 on: Nov 5, 2023
Gracias!


nanny

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Reply 3 on: Yesterday
Wow, this really help

 

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