Question

Which of the following compounds is either not soluble or insoluble in water?

(NH4)3PO4
Hg2Cl2
Co(CH3COO)3
NaNO3-my choice
is it right?

Answer 1

Hg2Cl2

http://chemistry.about.com/od/solutionsmixtures/a/solubility-rules.htm

"Cl- - All chlorides are soluble except AgCl, Hg2Cl2, and PbCl2."

Answer 2

thanks can you help me with two other questions i have.

Answer 3

I'm not really sure. I can try but I suck at Chemistry.

Answer 4

k thanks:) The Ksp of PbCl2 is 1.7 × 10–5 at 25 °C. What is the concentration of Cl–(aq) in a saturated solution of PbCl2(aq)?

3.2 × 10–2 M-my choice
2.6 × 10–2 M
1.6 × 10–2 M
4.1 × 10–3 M

The Ksp of AgBr is 5.4 × 10–13 at 25 °C. Calculate the molar solubility of AgBr in 0.050 M AgNO3(aq) at 25 °C.

1.1 × 10–11 mol/L
2.2 × 10–11 mol/L- my choice
7.3 × 10–7 mol/L
5.2 × 10–8 mol/L
my teacher never taught so im like trying to learn on my own

Answer 5

@wolfe8

Answer 6

Have you ever tried KhanAcademy? They have a whole section where you can learn Chemistry.

Answer 7

nope

Answer 8

http://uk.answers.yahoo.com/question/index?qid=20090502131102AAA45Av I think this should answer your question