Question

Which of these solutions has a higher boiling point: 0.35 m CaCl2 or 0.9 m urea...

Which of these solutions has a higher boiling point: 0.35 m CaCl2 or 0.9 m urea [(NH2)2CO]. State your reason.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

T = i*m*Kb

CaCl2 -----> Ca+2 + 2Cl-

total three ions i = 3

T = i*m*Kb

       = 3*0.35*0.512

       = 0.5376C0

urea [(NH2)2CO] not ionisable i=1

T = i*m*Kb

      = 1*0.9*0.512

      = 0.4608C0

number of ions are increases boliling point is increases.

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
1-Urea, which has the chemical formula (NH2)2CO, is a fertilizer that can be prepared by reacting...
1-Urea, which has the chemical formula (NH2)2CO, is a fertilizer that can be prepared by reacting ammonia (NH3) with carbon dioxide (CO2). Given the following chemical equation, what is the theoretical yield of urea (in grams) if 8.19 mol carbon dioxide is the limiting reactant? 2 NH3(g) + CO2(g) → (NH2)2CO(aq) + H2O(l) 2- Suppose 4.77 g of NH3 are mixed with 7.52 g of CO2. Determine the limiting reagent and theoretical yield of urea 2 NH3(g) + CO2(g) →...
Which of the following aqueous solutions would have the highest boiling point? Solve the boiling point...
Which of the following aqueous solutions would have the highest boiling point? Solve the boiling point for the correct one. A. .50 M NaSO3 B. 1.0 M NaCI C. 2.0 M C6H14 D. 1.5 M HCI E. .5 M (NH4)3 PO4
Which of the following aqueous solutions will have the highest boiling point? 0.10 m KOH 0.10...
Which of the following aqueous solutions will have the highest boiling point? 0.10 m KOH 0.10 m RbCl 0.05 m CaSO4 0.05 m BaCl2 0.10 m K2SO4
Which of the following aqueous solutions has the highest boiling point.? Kb for water is 0.52...
Which of the following aqueous solutions has the highest boiling point.? Kb for water is 0.52 Celsius/m a) 0.3 m potassium chloride b) 0.4 m hydrofluroic acid c) 0.2 m sodium sulfate d) 0.2 aluminum nitrate e) cannot be determined
Which of the following aqueous solutions should have the lowest boiling point? 0.50 m KCl 2.0...
Which of the following aqueous solutions should have the lowest boiling point? 0.50 m KCl 2.0 m C6H12O6 0., 50 m CaBr2 1.5 m KI 0.50 m Na2SO4
Imagine two solutions with the same concentration and the same boiling point, but one has benzene...
Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other has carbon tetrachloride as the solvent. Determine that molal concentration, m (or b), and boiling point, Tb.
A certain substance X has a normal freezing point of -6.4 C and a molal freezing...
A certain substance X has a normal freezing point of -6.4 C and a molal freezing point depression constant Kf= 3.96 degrees C.kg.mol-1. A solution is prepared by dissolving some urea ((NH2)2CO) in 950. g of X. This solution freezes at -13.6 C. calculate the mass of urea that was dissolved. Round your answer to 2 significant digits.
Which salt would raise the boiling point of a solvent the most? a. 1.4 m Na2SO4...
Which salt would raise the boiling point of a solvent the most? a. 1.4 m Na2SO4 b. 4.0 m CH3OH c. 1.4 m NaCl d. 1.0 m CaCl2 The answer should be a but could someone explain why?
List the following aqueous solutions in order of increasing boiling point: 0.131 m C6H12O6 (glucose), 0.034...
List the following aqueous solutions in order of increasing boiling point: 0.131 m C6H12O6 (glucose), 0.034 m LiBr, 0.050 m Zn(NO3)2. (The molal boiling-point-elevation constant for water is 0.51°C/m. Also, explain why?
Which solution has the higher boiling point: 28.8 g C2H6O2 in 0.500 kg of H2O or...
Which solution has the higher boiling point: 28.8 g C2H6O2 in 0.500 kg of H2O or 24.0 g NaCl in 0.500 kg of H2O?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT