Question

In: Chemistry

SHOW WORK AND EXPLAIN FOR ALL 2. What is the freezing point of a 0.19 m...

SHOW WORK AND EXPLAIN FOR ALL

2. What is the freezing point of a 0.19 m solution of glucose, C6H12O6, in water? (Kf for water is 1.858°C/m.)

3. What is the boiling-point change for a solution containing 0.347 mol of naphthalene (a nonvolatile, nonionizing compound) in 250. g of liquid benzene? (Kb = 2.53°C/m for benzene)

4. If a 15.4-g sample of a nonelectrolyte is dissolved in 174.0 g of water, the resulting solution will freeze at –0.93°C. What is the molar mass of the nonelectrolyte? (Kf for water is 1.858°C/m.)

Solutions

Expert Solution


Related Solutions

MOLECULAR MASS BY FREEZING POINT DEPRESSION SHOW YOUR WORK PLEASE! Procedures: Experiment 1: Measure the Freezing...
MOLECULAR MASS BY FREEZING POINT DEPRESSION SHOW YOUR WORK PLEASE! Procedures: Experiment 1: Measure the Freezing Point of Pure Water Take a clean test tube from the Containers shelf and place it on the workbench. Take a balance from the Instruments shelf and place it on the workbench. Place the test tube on the balance. Zero the balance. Take water from the Materials shelf and add 10 mL to the test tube. NOTE: In a classroom laboratory, you would remove...
What are the boiling point and freezing point of a 1.47 m solution of naphthalene in...
What are the boiling point and freezing point of a 1.47 m solution of naphthalene in benzene? (The boiling point and freezing point of benzene are 80.1°C and 5.5°C respectively. The boiling point elevation constant for benzene is 2.53°C/m, and the freezing point depression constant for benzene is 5.12°C/m.) Boiling point = °C Freezing point = °C
. The freezing point of benzene is 5.5oC What is the freezing point of a solution...
. The freezing point of benzene is 5.5oC What is the freezing point of a solution of 5.00 g C10H8 in 444 g   of benzene. You will need to look up the freezing point depression constant for benzene in a reference book.                 Calculated FP: Benzene Kf = ___________ *remember you will need “m”, which is in Kg     Name of reference used: __________________       Calculated FP:     i factor used and explain i factor:
The freezing point of benzene is 5.5°C. What is the freezing point of a solution of...
The freezing point of benzene is 5.5°C. What is the freezing point of a solution of 2.80 g of naphthalene (C10H8) in 355 g of benzene (Kf of benzene = 4.90°C/m)? Please answer in how many degrees of Celcius
a. 1. 0.29 m NiSO4 A. Lowest freezing point 2. 0.18 m BaI2 B. Second lowest...
a. 1. 0.29 m NiSO4 A. Lowest freezing point 2. 0.18 m BaI2 B. Second lowest freezing point 3. 0.16 m CuCl2 C. Third lowest freezing point 4. 0.51 m Sucrose(nonelectrolyte) D. Highest freezing point b. Match the following aqueous solutions with the appropriate letter from the column on the right. 1. 0.16 m Ca(NO3)2 A. Lowest freezing point 2. 0.18 m Ca(NO3)2 B. Second lowest freezing point 3. 0.25 m KOH C. Third lowest freezing point 4. 0.44 m...
The Kf for acetic acid is 3.90 oC/m and its freezing point is 16.6 oC. Calculate the freezing point of a 1.25 M solution of benzoic acid
  The Kf for acetic acid is 3.90 oC/m and its freezing point is 16.6 oC. Calculate the freezing point of a 1.25 M solution of benzoic acid, C7H6O2 in acetic acid. The density of this solution is 1.067 g/mL. The density of pure acetic acid is 1.049 g/mL.
For freezing point depression what are 2 reasonable explanations for error? what will happen if it...
For freezing point depression what are 2 reasonable explanations for error? what will happen if it gets low value? what will happen if it gets high value? what advice would you give to someone about ice bath or freezing process ?
Please show all your work! Sol Conc. NH3 (M) Conc.NH4+(M) pH 2 0.025 M 0 M...
Please show all your work! Sol Conc. NH3 (M) Conc.NH4+(M) pH 2 0.025 M 0 M 10.82 4 0.025 M 0.025 M 9.26 5 0.0025 M 0.0025 M 9.26                                                                                                 (total volume) 6 2.5mL 0.10M NH3, 2.5mL 0.1M NH4Cl & 1.0mL 0.10M NaOH & 4mL H2O 10 mL 7 2.5mL 0.10M NH3, 2.5mL 0.1M NH4Cl & 1.0mL 0.10M HCl of & 4mL H2O 10 mL 8 2.5mL 0.10M NH3, 2.5mL 0.1M NH4Cl & 5.0mL 0.10M HCl 10 ml 9 2.5mL...
Cyclohexane has a freezing point of 6.50 ∘C and a Kf of 20.0 ∘C/m. What is...
Cyclohexane has a freezing point of 6.50 ∘C and a Kf of 20.0 ∘C/m. What is the freezing point of a solution made by dissolving 0.771 g of biphenyl (C12H10) in 25.0 g of cyclohexane?
Problem​ #2 Point​ Value: 15 Show all Work to Receive Credit Using the Below​ Information: Cash                          
Problem​ #2 Point​ Value: 15 Show all Work to Receive Credit Using the Below​ Information: Cash                                                                    ​$18,000 ​Short-Term Notes​ Payable $12,000 Accounts Receivable ​ $60,000 ​Long-Term Bonds​ Payable $15,000 Other Current Assets ​ $5,000 Common Stock​ ​ $43,000 ​Inventories ​ $122,000 ​Sales ​ $300,000 Gross fixed​ assets ​ $40,000 Cost of Goods​ Sold ​ $150,000 Accumulated​ Depreciation $30,000 Depreciation​ Expense $3,000 Accounts payable ​ $35,000 Retained​ Earnings ​ $100,000 ​Long-term notes​ payable $10,000 ​A: Prepare a Balance Sheet    Make sure...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT