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Author Question: The following three equations represent equilibria that lie far to the right.HNO3(aq) + CN(aq) ... (Read 66 times)

burton19126

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on: Mar 21, 2021

Question 1

The following question refers to a solution that contains 1.92 M hydrofluoric acid, HF (Ka = 7.2 10–4), and 3.00 M hydrocyanic acid, HCN (Ka = 6.2 10–10).
What is the pH of this mixture of weak acids?

◦ 1.43
◦ 2.86
◦ 4.46
◦ 8.92
◦ 12.57

Question 2

The following three equations represent equilibria that lie far to the right.
 
HNO3(aq) + CN–(aq) HCN(aq) + NO3–(aq)
 
HCN(aq) + OH–(aq) H2O(l) + CN–(aq)
 
 
H2O(l) + CH3O–(aq) CH3OH(aq) + OH–(aq)
Identify the strongest acid. 
Reference: Ref 14-2

​

​


◦ HCN
◦ HNO3
◦ H2O
◦ OH–
◦ CH3OH
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by burton19126 on Mar 21, 2021

peilian

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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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burton19126

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Reply 2 on: Mar 21, 2021
Gracias!

aliotak

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Reply 3 on: Yesterday
Wow, this really help

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