Homework Help: chemistry

Posted by Anonymous on Sunday, April 18, 2010 at 12:56am.

Saturated solutions of each of the following compounds are made at 20 degree Celsius. Which of the solutions will form a precipitate upon heating?
a. NaCl b. Na2SO4
c. Li2CO3 d. sucrose

Since water heats at 100 degree Celsius here are there solubility (g/100 g of H2O) measurements
for a. 39.2 b. 41.0 c. 0.70 d. 487

Can you explain to me how you got the answer?

chemistry - DrBob222, Sunday, April 18, 2010 at 1:47pm
Frankly, I don't understand the data table. It's nice to know the solubility but what is the temperature? 100 C perhaps? And what is the saturated solution of each? The answer, I believe, is Na2SO4. The solubility curve for Na2SO4.10H2O decreases above about 30 C.
http://en.wikipedia.org/wiki/Sodium_sulfate

Answer this Question

Related Questions

chemistry - calculate the weight of crystal formed on cooling 80 gm of saturated...
Chemistry - List the following equilibrium solutions in order of decreasing free...
chemistry - What mass of crystals will form when a hot saturated copper sulphate...
Chemistry - 12. Solutions cans be supersaturated if they contain more dissolved ...
Chemistry-Help Please! - @ 20 Celsius - 22g CuSO4 / 100g H2O @ 40 Celsius- 42g ...
Chemistry - If saturated solution of barium chloride at 30 degree Celsius ...
Chemistry - Solutions are made that contain 0.1 moles of each of the following ...
chemistry - Soutions are made that contain 0.1 moles of each of the following ...
CHEMISTRY - IF THE AIR IS 20 DEGREE CELSIUS IT'S HOT, IF THE WATER IS WITH ...
UNP - HOW MANY CALORIES ARE REQUIRED TO HEAT OF EACH OF THE FOLLOWING FROM 15 ...

For Further Reading

First Name:
School Subject:
Answer: