Oceans Flashcards Preview

OCR B A Level Chemistry > Oceans > Flashcards

Flashcards in Oceans Deck (3)
Loading flashcards...
1

The solubility of Ca(OH)2 is x mol dm–3. What is the value of the solubility product?

4x^3

2

When is a reaction is not feasible at any temperature?

negative ∆sysS, positive ∆H

3

A strong base has a pH of 11.2. What is the value of [OH–] in mol dm–3?

[H+]= 10^(–pH) = 6.3 x 10^(–12)
[OH–]= Kw/[H+] = 1.6 x 10^(–3)