# CHEMISTRY

posted by .

At what temperature do KCL and KNO3 have the same solubility

If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved?

If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate?

How much NaCL will dissolve in 350.0 g of water at 70.0C

How much KCL Will dissolve in 50. g of water at 50.0C

What mass of O2 can be dissolved in 2000.0 g of water at 30.0 C

Please help me work these out. I am doing a practice page before my test 2morrow and I need to know how to work them THANKS

• CHEMISTRY -

You must have information on the solubility at various temperatures. We need that to help you.

• CHEMISTRY -

Um Alls the sheet gave me is this.. But are you talking about graphs?

• CHEMISTRY -

A graph would do if but you must read the graph. We need the solubility of KNO3 and KCl but if you have a graph all you need to do is read that first one off the graph. At what T on the graph is the solubility of KCl and KNO3 the same. The solubility curves should intersect at that point. In fact I think all of these can be read from the graph.

• CHEMISTRY -

Oh okay THANKS SO MUCH!

## Similar Questions

1. ### Chemistry

Hi, my question is: "Classify each of the following as saturated, supersaturated, or unsaturated: KNO3 90g/100g at 82*C NaCl 36g/100g at 23*C KCl 35g/100g at 18*C NaNO3 90g/100g at 28*C How do I determine if they are saturated, supersaturated, …
2. ### chemistry

A 355g sample of a saturated solution of KNO3(s) in water is prepared at 25.0 degrees C. If 50g H2O is evaporated from the solution at the same time as the temperature is reduced from 25.0 to 0.0 degrees C, what mass of KNO3(s) will …
3. ### Chemistry

which amount of a compound dissolved in 110.g of water at the stated temperature represents a solution that is saturated?
4. ### Chemistry Help? Thanks

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved?
5. ### Chemistry

When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs?
6. ### Chemistry

Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its …
7. ### Chemistry

Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its …
8. ### Chemistry

Which of the following mixtures of KCl in water is a saturated solution and which is an unsaturated solution; 1)100g of KCl in 100mL of H2O at 40°C 2)50g of KCl in 100mL of H2O at 70°C 3) 120g of KCl in 100mL of H2O at 60°C My data …
9. ### soran university

1. Which salt is LEAST soluble at 0 ºC? 2. How many grams of sodium nitrate, NaNO3, are soluble in 100 g of water at 10 ºC?
10. ### Chem

A 175-g sample of water is saturated with KNO3 at 40ºC. What mass of KNO3 forms a precipitate if the solution is cooled to the freezing point of water?

More Similar Questions