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Author Question: The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0 C is 4.9 10-10. What is the pH of ... (Read 91 times)

Engineer

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on: Jul 8, 2021

Question 1

The acid-dissociation constant at 25.0 °C for hypochlorous acid (HClO) is 3.0 × 10-8. At equilibrium, the molarity of H3O+ in a 0.010 mol L-1 aqueous solution of HClO is:
◦ 1.7 × 10-5
◦ 0.010
◦ 5.8 × 10-10
◦ 4.76
◦ 2.00

Question 2

The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0 °C is 4.9 × 10-10. What is the pH of an aqueous solution of 0.080 mol L-1 sodium cyanide (NaCN)?
◦ 11.11
◦ 2.89
◦ 1.3 × 10-3
◦ 7.8 × 10-12
◦ 3.9 × 10-11
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by Engineer on Jul 8, 2021

cici

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Reply #1 on: Jul 8, 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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Engineer

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Reply 2 on: Jul 8, 2021
Excellent

helenmarkerine

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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