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Author Question: A certain acid, HA, has a Ka given by: HA + H2O H3O+ + A-Ka = 6.80 10-6 What is the pH of a 0.247 M ... (Read 26 times)

mspears3

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Question 1

A 7.0 × 10-3  mol L-1 aqueous solution of Ca(OH)2 at 25.0 °C has a pH of:
◦ 12.15
◦ 1.85
◦ 1.4 × 10-2
◦ 7.1 × 10-13
◦ 11.85

Question 2

A certain acid, HA, has a Ka given by:
HA + H2O H3O+ + A-Ka = 6.80 × 10-6

What is the pH of a 0.247 M aqueous solution of the acid's potassium salt, KA, which undergoes the hydrolysis reaction?
A- + H2O OH- + HA

◦ 4.72
◦ 9.28
◦ 4.11
◦ 9.89
◦ 9.44


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Marked as best answer by mspears3 on Jul 8, 2021

Shshxj

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mspears3

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Reply 2 on: Jul 8, 2021
Gracias!


sultansheikh

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Reply 3 on: Yesterday
Excellent

 

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