Question

In: Chemistry

Does the value of Kf (for TBA) depend on the amount of the Benzoic acid used?...

Does the value of Kf (for TBA) depend on the amount of the Benzoic acid used? Explain why?

(Bonus: 2 pts)Discuss what else you can do except adding more BA or any solute into TBAsolution to decrease the freezing point for TBA.

(Kf of TBA) = 18.0 degrees celsius

Solutions

Expert Solution


Related Solutions

Benzoic Acid and TBA Finish the given table: Trial 1 Trial 2 1. Kf for TBA...
Benzoic Acid and TBA Finish the given table: Trial 1 Trial 2 1. Kf for TBA 9.1° C/m 9.1° C/m 2. Mass of Benzoic Acid (g) 1.01 g 1.01 g 3. Freezing point of benzoic Acid    and TBA solution from graph 20.4 C 17.6 C 4. Freezing point change 3.8°C 2.6° C 5. Molality of solution ? ? 6. Calculated molar mass of Benzoic Acid (g/mol) ? ? 7. Average Molar Mass (g/mol) ? ? 8. Standard Deviation ?...
If a small amount of the benzoic acid measured fails to dissolve in the lauric acid,...
If a small amount of the benzoic acid measured fails to dissolve in the lauric acid, what impact would this have on the molecular weight calculated? Would it be too high or too low? Explain your answer
Why is benzoic acid used in a soda formulation ?
Why is benzoic acid used in a soda formulation ?
Benzoic acid has the Ka value= 6.3x10^-5. A 35.0mL sample of 0.13M benzoic acid is titrated...
Benzoic acid has the Ka value= 6.3x10^-5. A 35.0mL sample of 0.13M benzoic acid is titrated w/ a 0.15M solution of NaOH. Find the pH at the equivalence point???
a.) Calculate the amount of benzoic acid in the methylene chloride using the titration that required...
a.) Calculate the amount of benzoic acid in the methylene chloride using the titration that required 1.35mL NaOH to calculate the weight of benzoic acid, M.W. 122.12g/mol, in aqueous layer, and subtract from the total sample weight. b.) Determine K K= concn org/concn aq=(mol org/vol org)/(mol aq/vol aq)= (wt total -wt aq)/wt aq wt aq= vol base × molarity base × mol benzoic acid I used 162.0 mg, 25 mL H2O, 25mL CH2Cl2 separated and got top layers titration of...
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.
Calculate the apparent solubility of benzoic acid at pH 5. Benzoic acid is a weak acid,...
Calculate the apparent solubility of benzoic acid at pH 5. Benzoic acid is a weak acid, with pKa = 4.2 and solubility of nonionized species S0 = 0.028 mol/L. Please show steps
How do i determine the distribution coefficent of benzoic acid? I used 0.050 grams of benzoic...
How do i determine the distribution coefficent of benzoic acid? I used 0.050 grams of benzoic acid and performed extractions 3 times using 2.0 ml of methylene cloride and 2.0 mL of water and got around 0.035 grams after all the extractions done. also is there a correlation between the values of the distribution coefficent and the polarity of the compound? thank you
5). Does the temperature of a body depend on its size? Does the amount of heat...
5). Does the temperature of a body depend on its size? Does the amount of heat that a body can absorb depend of its size?
Pure Lauric Acid Lauric Acid + 0.4 g Benzoic Acid Lauric Acid + 0.5 g Benzoic...
Pure Lauric Acid Lauric Acid + 0.4 g Benzoic Acid Lauric Acid + 0.5 g Benzoic Acid Mass of Lauric Acid (g) 3.07 3.05 3.06 Mass of Benzoic Acid (g) 0 0.43 0.51 Freezing Point 43 38 37 Freezing Point Depression, DTf -5 -6 molality of Benzoic Acid in Lauric Acid ? ? Moles of Benzoic Acid ? ? Experimental Molar Mass of Benzoic Acid ? ? Average Molar Mass ?                              ? Percent Error ?                              ?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT