Login | Register

Search the forums now!

Enrol now for our new online tutoring program. Learn from the best tutors. Get amazing results. Learn more.

Welcome, Guest. Please login or register.

April 22, 2021, 09:23:02 am
Pages: [1]   Go Down

Author Topic: Help with Ksp / solubility exam question  (Read 1946 times)  Share 

0 Members and 1 Guest are viewing this topic.

aspiringfuturist

  • Fresh Poster
  • *
  • Posts: 4
  • Respect: 0
Help with Ksp / solubility exam question
« on: April 12, 2020, 09:27:24 pm »
0
Hi,

I'm struggling with this question - I feel like I've found out as much information as I can, using the information given and stoichiometry, but I'm really stuck now. The question is:

Some Ca(CO3)2 is dissolved in 100 mL of water. This solution is mixed with 300 mL of 0.010 M Na2SO4. A very faint precipitate of calcium sulfate is formed. If the Ksp value of calcium sulfate is 2.4 * 10^-5, how much calcium nitrate was dissolved to make the initial solution?

Any help would be greatly appreciated. Thanks.
Logged

Kangaaroo

  • Fresh Poster
  • *
  • Posts: 1
  • Respect: 0
Re: Help with Ksp / solubility exam question
« Reply #1 on: July 04, 2020, 08:32:20 pm »
0
The question says calcium carbonate was dissolved, then says that a precipitate of calcium sulfate was formed, then asks how much calcium nitrate was initially dissolved. Are these typos on your part?
Logged
Pages: [1]   Go Up