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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 35 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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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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madimontg

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Reply 2 on: Nov 5, 2023
:D TYSM


lindahyatt42

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Reply 3 on: Yesterday
Excellent

 

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