Colligative Properties Exp - Revision history

Bes at 16:57, 21 August 2020

2020-08-21T16:57:58Z

Bes at 16:56, 21 August 2020

2020-08-21T16:56:19Z

Bes at 16:56, 21 August 2020

2020-08-21T16:56:01Z

Bes at 18:04, 20 August 2020

2020-08-20T18:04:05Z

Bes at 17:05, 20 August 2020

2020-08-20T17:05:30Z

Bes: Created page with "[https://en.wikipedia.org/wiki/Colligative_properties Colligative Properties] include: :- Boiling point elevation :- Freezing point depression :- vapor pressure decrease :- os..."

2020-08-20T11:58:09Z

Created page with "[https://en.wikipedia.org/wiki/Colligative_properties Colligative Properties] include: :- Boiling point elevation :- Freezing point depression :- vapor pressure decrease :- os..."

New page

[https://en.wikipedia.org/wiki/Colligative_properties Colligative Properties] include:
:- Boiling point elevation
:- Freezing point depression
:- vapor pressure decrease
:- osmotic pressure alteration

Chemical principles:
: - molality (m) = moles of solute/kg solvent [similar to molarity (M)]

Demonstration:
:- Seltzer water...

Experiment:
:- temperature of various salt water solutions.

@@ Line 15: / Line 15: @@
 Experiment:
-:- temperature of various salt water solutions.
+:- temperature (T) of various salt water solutions (m).
-:- Graph data and show to bes
+:- Graph data (m vs T), trendline/linear regression fit, determine cryogenic constant k<sub>f</sub>, and print and turn in to instructor.

@@ Line 9: / Line 9: @@
 :- cryoscopic constant (k<sub>f</sub> = ...for freezing, k<sub>b</sub> = ...for boiling) (see list [https://en.wikipedia.org/wiki/List_of_boiling_and_freezing_information_of_solvents here])
 :- van't Hoff factor = an integer value indicating the number of solute particles resulting.
-:- ΔT = k<sub>f</sub> or k<sub>b</sub> x m x i
+:- ΔT = k<sub>f</sub> or k<sub>b</sub> * m * i
 Demonstration:

@@ Line 7: / Line 7: @@
 Chemical principles:
 :- molality (m) = moles of solute/kg solvent [similar to molarity (M)]
-:- cryoscopic constant (kf = ...for freezing, kb = ...for boiling) (see list [https://en.wikipedia.org/wiki/List_of_boiling_and_freezing_information_of_solvents here])
+:- cryoscopic constant (k<sub>f</sub> = ...for freezing, k<sub>b</sub> = ...for boiling) (see list [https://en.wikipedia.org/wiki/List_of_boiling_and_freezing_information_of_solvents here])
 :- van't Hoff factor = an integer value indicating the number of solute particles resulting.
-:- ΔT = k<sub>f</sub>/k<sub>b</sub> x m x i
+:- ΔT = k<sub>f</sub> or k<sub>b</sub> x m x i
 Demonstration:

← Older revision		Revision as of 18:04, 20 August 2020
Line 16:		Line 16:
	Experiment:		Experiment:
	:- temperature of various salt water solutions.		:- temperature of various salt water solutions.
		+	:- Graph data and show to bes