Lab session 5

LAB SESSION 5- COLLIGATIVE PROPERTIES

OBJECTIVE

To investigate the relationship between the molality and the boiling point of a solution.

HYPOTHESIS

TABLE OF RESULTS AND GRAPH

Recorded boiling points (ºC)

Mass of benzoic acid in solution (g)	Molality (mol/kg)	1	2	3	4	5	6	7	Average boiling point (ºC)	Standard deviation (ºC)	Change in boiling point compared to pure acetone (ºC)
0.00		51	52	54	53	56	46.1	54	52	3.4
0.50		54	57	57	56	40	50	57	52	6.6
1.00		56	60	60	61	54	61.5	61	59	3.0
1.50		69	68	65	67	48	55	63	62	8.5
2.00		68	65	71	69	52	66	64	65	6.8
2.50		69	73	77	75	54.5	59	68	68	9.2
		M+M	M+M	J+F+E	J+F+E	I+M	I+M

CONCLUSION

EVALUATION

REFERENCES

9.     Create a blog to appropriately present this investigation and its findings. It should include a: title, objective, detailed hypothesis, complete table of results, graph (with error bars showing the standard deviation of the temperatures measures), conclusion (explaining the results and how they match to your hypothesis), evaluation (discussing problems and suggesting improvements) and a minimum of 2 references.