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Author Question: What is the pH a 2.0-liter buffered solution created from 0.35 M NH3(Kb= 1.8 105) and 0.26 M NH4F? (Read 46 times)

cdr_15

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on: Mar 21, 2021

Question 1

What is the percent dissociation of HNO2 when 0.060 g of sodium nitrite is added to 115.0 mL of a 0.065 M HNO2 solution? Ka for HNO2 is 4.0 × 10–4.

◦ 14%
◦ 0.34%
◦ 5.3%
◦ 0.077%
◦ 7.8%

Question 2

What is the pH a 2.0-liter buffered solution created from 0.35 M NH3(Kb= 1.8 × 10–5) and 0.26 M NH4F?

◦ 9.26
◦ 9.38
◦ 4.62
◦ 4.87
◦ 9.13
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Marked as best answer by cdr_15 on Mar 21, 2021

AISCAMPING

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Reply #1 on: Mar 21, 2021
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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cdr_15

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Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

triiciiaa

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Reply 3 on: Yesterday
Gracias!

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