All Questions
4
questions
2
votes
1
answer
73
views
How to take a sample of a hot salt solution without it precipitating in the cooler glassware due to the difference in solubilities at different temps?
I'm doing an investigation to see the effect of temperature on the solubility product of strontium hydroxide.
I made a supersaturated solution left in the oven overnight at 85°C for equilibrium to be ...
- 29
2
votes
1
answer
4k
views
Whose solubility increases with increase in temperature?
Solubility of which among the following substances in water increases slightly with rise in temperature?
(a)$\ce{KBr}$
(b)$\ce{KCl}$
(c)$\ce{KNO3}$
(d)$\ce{NaNO3}$
Answer is (b).
I don't know why.
...
- 611
0
votes
1
answer
2k
views
How do I dissolve sodium oleate in distilled water
I wanted to know how to dissolve sodium oleate powder in distilled water? Does it have to be at a certain temp? I need a 2% solution
- 1
7
votes
1
answer
2k
views
Why do some solid chemicals dissolve better in colder water?
I just discovered that some solid chemicals, such as $\ce{Na2SO4}$, dissolve better in cold water than hot water from here and would like to know if there is any particular reason as to why. Is it ...
- 173