Question

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, Î”Tf -5 -6 Molality of Benzoic Acid in Lauric Acid ? ? Moles of Benzoic Acid ? ? Experimental Molar Mass of Benzoic Acid ? ? Average Molar Mass ? ? Percent Error ? ?

Name: pure lauric acid lauric acid 04 g benzoic acid lauric acid 05 g benzoic acid mass of lauric acid g 307 305 306 mass of benzoic acid g 0 043 051 freezing point 43 38 37 freezing point depress 75436
Uploaded: 2023-10-10T12:57:20-08:00
Duration: 1 min 11 s
Channel: Sri K
Description: pure lauric acid lauric acid 04 g benzoic acid lauric acid 05 g benzoic acid mass of lauric acid g 307 305 306 mass of benzoic acid g 0 043 051 freezing point 43 38 37 freezing point depress 75436

          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, Î”Tf
-5
-6
Molality of Benzoic Acid in Lauric Acid
?
?
Moles of Benzoic Acid
?
?
Experimental Molar Mass of Benzoic Acid
?
?
Average Molar Mass
?                             
?
Percent Error
?                             
?

Added by Rachel C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Sri K

10/10/2023

Step 1

Calculate the freezing point depression (ΔTf) for each mixture: ΔTf = (Freezing point of pure Lauric Acid) - (Freezing point of mixture) For the mixture with 0.4 g Benzoic Acid: ΔTf = 43 - 38 = 5 °C For the mixture with 0.5 g Benzoic Acid: ΔTf = 43 - 37 = 6 °C Show more…

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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, Î”Tf -5 -6 Molality of Benzoic Acid in Lauric Acid ? ? Moles of Benzoic Acid ? ? Experimental Molar Mass of Benzoic Acid ? ? Average Molar Mass ? ? Percent Error ? ?