1
Q
The solubility of Ca(OH)2 is x mol dm–3. What is the value of the solubility product?
A
4x^3
2
Q
When is a reaction is not feasible at any temperature?
A
negative ∆sysS, positive ∆H
3
Q
A strong base has a pH of 11.2. What is the value of [OH–] in mol dm–3?
A
[H+]= 10^(–pH) = 6.3 x 10^(–12) [OH–]= Kw/[H+] = 1.6 x 10^(–3)
