What is the pH of a 0.055 M solution of sodium cyanide?
The Ka value for hydrocyanic acid is 6.2 x
What is the pH of a mixture containing 0.33 M HNO2
and 0.20 M NaNO2? (Ka for
HNO2 = 4.5 x 10-4)
What is the molar solubility of Zn2+ in a solution
that is buffered at a pH of 4.00? The Ksp for
Zn(OH)2 is 3 x 10-17.
a. 6 x 10-23 mol/L
b. 7 x 10-4 mol/L
c. 3000 mol/L
d. 3 x 10-7 mol/L
e. 3 x 10-17 mol/L
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