Making notes. Both my AQA textbook and Chemrevise says that Mg(OH)2 are insoluble in water so will suspend.
However, the specification saysthat Mg(OH)2 is sparingly soluble.
What would I write in the exam to get the mark?
x Turn on thread page Beta
Is Mg(OH)2 sparingly soluble or insoluble? watch
- Thread Starter
- 25-10-2017 15:17
- 25-10-2017 16:42
Wikipedia says: 0.00064 g/100 mL (25 °C)
i.e. 156250 cm3 of water is need to dissolve 1 g
Sigma Aldrich say this:
Hmm, that didn't copy and paste well, here's a link: http://www.sigmaaldrich.com/united-k...olubility.html
i.e. Mg(OH)2 is practically insoluble.
If you have a saturated solution, it would have a pH of around 10.34.
Pro tip: always go with the specification.Last edited by Pigster; 25-10-2017 at 16:44.