2025-2026 (CHEM 103) LAB REPORT 7| PORTAGE
LEARNING| GRADED A+
Chemistry Lab Report
Experiment # 7
Title: Molality Colligative Properties
Purpose: The purpose of this experiment is to evaluate the effects of two different salts on the
temperature and consistency of ice cream by measuring the amount of salt in particular ice
using the molality unit.
Procedure:
1.
Using 2 different salts to demonstrate colligative properties; measuring the amount of salt in
particular ice using the molaltiy unit, weighed out ice, NaCl (sodium chloride) , CaCl2 (calcium
chloride) We have salt .5 mol weighed out of both (NaCl and CaCl2).This is what will make it
cold and ice cream ingredients also weighed out and labeled as NaCl and CaCl2 ( Milk, vanilla,
sugar and vanilla )
2.
Going to make ice cream with 2 different saltsin two bags to evaluate the impact that two
different salts have on the temp and consistency of the ice cream . Take .5 mol sodium chloride
and put it in with the ice in the Sodium Chloride bag. Then add the ice cream ingredients inside
the bag and begin the reaction interacting the salt and ice. Repeat with a calcium chloride bag.
3.
Record Initial temp of Sodium Chloride is : 2.4°C, Calcium Chloride .Add .5 mole of calcium
chloride; mix it up a bit .Then add in the bag of milk .Record Initial temp of CaCl2 : 0.6°C .
Same amount of ice cream ingredients in each of them. Take a temp of each bag ; it should be
roughly the same for both despite the salt type. Seal up both bags and put them on the shaker
and let them shake for 15 minutes. After 15 minutes, we will evaluate the science of the
differences in the salt to make 2 batches of ice cream
4.
After 15 min the temperature changed Sodium chloride is now -8.2°C and Calcium Chloride
is -11.0°C. Calcium has more liquidity than sodium chloride.
Data/Results/Calculations:
