Colligative Properties and Osmotic Pressure

Student's Name: Kwame Owusu

Date of Experiment: 0113112015

Date Report Submi*ed: A?l0]ll2}15

Title: Colligative Properties and Osmotio Pressrire purpose: The experiment is meant to caiculate the rnolecular mass of a compound and also tube' The demonstrate how osmosis occur through a semipermeable membrane like a dialysate purpose is also to compare both the freezing afld the boiling point to a control solvent of a solution. procedure: I used a light syrup in a dialysis tubing to calculate the mass in relation to time' 1 also or a nonvolatile used ice chips to determine the freezing point and the boiling point of a tap water solute.

Data Tables: Exercise 1: Colligative Properties: Osmosis Data Table 1. Dialysis Tubing Results Time:
0 minutes 30 minutes Mass of Dialysis Tubing

i 1.6 grarns
13.3 grams 16.5 grams

60 rninutes

Questions:

A.

The light syrup in the dialysis tubing is hypotonic to the water.

B b*.yt *7
t./

Tt =MpT
1t-6,\,t,-..:

)

Q,O/o'71
N;i

*w = lh* 7t,HL,* rv\uL ,.

ld= C+>13"i5 = )3"6 + >1 3"tS
F*:- >1L" 1s' ./,
',t/

CelS"- +-

- U. c, ioVT -H6
!

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a

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Exercise 2: Colligative Properties: Freezing Point Data Table 2. emnerafure Readinss for Point Temp ('C) of Temp ("C) of Temp ("C) of control solution solution (tao water) (-2.5 mL) salt + 1.0 tsp (*5 mL) salt + 0.5 tso
0 0
,)
-L

Time
(Seconds) 30 60 90

-4 -5

-3

n

0 0 0 0 0 0

-5

-8

t20
150 180

-8 -8 -8 -8
-8

-t2
-12

-12
-12 -12

210 240

Data Table 3.

Graph of Data