Question

The solubility limit of CaCl2*2H2O in boling water is 152g CaCl2*2H2O in 100g water. If you...

The solubility limit of CaCl2*2H2O in boling water is 152g CaCl2*2H2O in 100g water. If you dissolved enough CaCl2*2H2O in water to reach this solubility limit, would the water boil if the water was initially 20.0 C? The answer is YES... I need the equation to prove it. How???

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Moles of CaCl2.2H2O =

=1.03 mol

Mass of water = 100 g =0.1 kg

Molality = moles/kg = 1.03/0.1 = 10.3 m

Kb of water =0.512

Total number of ions CaCl2 can produce = i = 3 (Ca2+, and 2Cl- ions)

Formula to find elevation in boiling point

elevation in boiling point = 100 + 15.8 = 115.8 oC

So water boils and boiling temperature is = 115.8 oC

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
I feel you dissolved 220g of NaClO3 in 100g of 60c water , how much NaClO3...
I feel you dissolved 220g of NaClO3 in 100g of 60c water , how much NaClO3 would be settled on the bottom. Show work. Please explain how the solubility of NaClO3 at 60 in water is 137g, where does the 137 grams comes from?
The solubility of CaCl2 in water at 25°C is 81.1 g/100 mL; at 0°C its solubility...
The solubility of CaCl2 in water at 25°C is 81.1 g/100 mL; at 0°C its solubility decreases to 59.5 g/100 mL. Answer the following questions about an aqueous solution of 26.4 g of CaCl2 in a volume of 37.5 mL: a. At 25°C, is this a saturated solution? b. If the solution is cooled to 0°C, do you expect a precipitate to form? c. If the solution is slowly cooled to 0°C and no precipitate forms, then what kind of...
1. Answer the following questions: a) How does the addition of CaCl2 affect the molar solubility...
1. Answer the following questions: a) How does the addition of CaCl2 affect the molar solubility of Ca(OH)2? b) When you add 0.250f of SrF2 to 1.00L of water, the salt dissolves just a little. Write the balanced equation and write the expresion of Kps. c) If you find that the balance concentration of Sr2+ is 1.03 x 10-3M, What is the Kps value for SrF2 ? d) The Kps value for BaCO3 is 8.1 x 10-9 . Write the...
Question: You have 100g of water at 30C to which you add 50g of ice at...
Question: You have 100g of water at 30C to which you add 50g of ice at 0C. Calculate the entropy change for the process. For this problem I solved for the final temperature, Tf, and got that it is equal to 17.333 C = 290.483 K I have to solve for the change in entropy, though. How would I go about doing this? I was going to either use the formula: Delta S = n*Cp(molar)*ln(Tf/Ti) with n = (150/18.016 mols...
The solubility of acid A in water is 200 g/L at 100 C and 5g/L at...
The solubility of acid A in water is 200 g/L at 100 C and 5g/L at 10 C. How much mL of water do you need to dissolve 20 g of acid A at 1000 C? How much of this compound would recrystalize out of the solution upon cooling to 10 C? What technique would you use to isolate the product?
A 50.0-g copper calorimeter contains 210 g of water at 20.0°C. How much steam at 100°C...
A 50.0-g copper calorimeter contains 210 g of water at 20.0°C. How much steam at 100°C must be condensed into the water if the final temperature of the system is to reach 60.0°C? A step-by-step process (ex. Q1+Q2+...+ Qn = 0) would be appreciated. I am not concerned with the answer; I would just like a clear setup of the problem.
1) Use Henry's law to determine the molar solubility of helium at a pressure of 1.9...
1) Use Henry's law to determine the molar solubility of helium at a pressure of 1.9 atm and 25 ∘C. Henry’s law constant for helium gas in water at 25 ∘C is 3.70⋅10−4M/atm. 2) A 2.800×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.2 mL...
After a lab experiement, you need to neutralize 13.22 grams of barium hydroxide dissolved in water....
After a lab experiement, you need to neutralize 13.22 grams of barium hydroxide dissolved in water. You decide to do this by adding some solid phosphoric acid (H3PO4), resulting in a precipitate of barium phosphate. A) Write a balanced chemical equation fo this process. B) If you add 5.95g of H3PO4, is that enough to neutralize the barium hydroxide. Calculate and explain. C) What is the minimum number of grams of phosphoric acid you need to neutralize all of the...
please consider that all of the parts are related to each other and are about solubility...
please consider that all of the parts are related to each other and are about solubility of INSOLUBLE SALTS. I need brief and right answers please consider that while answering my questions. a) Will any changes be observed in a saturated solution of BaSO4 if some barium chloride solution is added? Write a balanced equation to support your answer. Explain. b) The measured volume of saturated Ca(IO3)2 solution (filtrate W) was believed to be 1.0 ml and this volume was...
Sodium hydroxide is dissolved in enough water to make up a 20.0 mole% solution. (a) If...
Sodium hydroxide is dissolved in enough water to make up a 20.0 mole% solution. (a) If the NaOH and water are initially at 77°F (25°C), how much heat (Btu/lb product solution) must be removed for the solution also to be at 77°F. Assume the process is carried out at constant pressure, so that Q=ΔH, and use Table B.11 to evaluate ΔH^s. (b) If the dissolution is done adiabatically, estimate the final temperature of the solution. Assume that the heat capacity...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT