TERM 2
PROJECT RUBRIC
Name: Naaim Eyas
10
Section: 10 Melons
Identifying between Sodium Chloride (Table Salt) and Sucrose (Table Sugar)
You will receive 2 beakers one contains a solution with 0.1 moles Sodium Chloride and the
other contains 0.1 moles sucrose. Predict an experiment to identify which solution contains
sodium chloride and which one contains sucrose without tasting or smelling any of these
two substances.
Prior to performing the lab, you need to complete rough draft of your Title, Introduction
and Procedure using the information below and the attached rubric
Title
Separating a Mixture Using Differences in Physical Properties
Introduction (Use the rubric on the back of this paper)
v Objective (the goal of the lab) – Description of the purpose of the lab
v Chemistry concepts (how will it be done?) – Discussion of all chemistry concepts used in
the lab and how they can be applied to identify substances.
Materials and Safety
List materials and relevant safety considerations.
Procedure
Describe the procedure in bullet form.
o Write so someone else could follow the instructions. Include an illustration of the
experimental set up
Equipment Available: (not all of this equipment must be used)
Beakers
Funnel
Water
Digital balance
Funnel
Scoop
Note: You may asked to find the number of particles(or molecules) and the number of any
atom involved in the composition of NaCl or C12H22O11 sample(0.1 moles).
è You need to complete a rough draft of your Title, Introduction, & Procedure before you
actually perform the Lab.
è Print a HARD COPY of your rough draft (Title, Introduction, and Procedure)
(Identifying Between a Cup of Sugar and a Cup of Table Salt)
When it comes in differentiating between two different elements you will have a lot of ways
you can use for example: Melting point, Boiling point, electrical conductivity, etc. But I will
be using a digital balance to find out which cup had sugar in solution and which had salt in
solution.
You need in this experiment:
1.
2.
3.
4.
CUPS
SUGAR AND SALT
DIGITAL BALANCE
WATER
ELEMENTS CALCULATION:
Table salt: NaCl
Sodium has an atomic mass of 22.98
Chlorine has an atomic mass of 35.453
We add them together and then divide by 10 to get a to get the element to 0.1 moles
22.98+35.453=58.433g/1mole.
Sugar: C12H22O11
58.433/10=5.8433g/0.1 mol
Carbon has an atomic mass of 12.0107
We have 12 carbons
So, 12 multiplied by 12.0107=144.1g/1 mole
Hydrogen has an atomic mas of 1.00784
We have 22 hydrogens
So, 22 multiplied by 1.00784=22.2g/1 mole
Oxygen has an atomic mass of 16
We have 11 oxygens
So, 11 multiplied by 16=176g/1 mole
We need to add all of them together and divide by 10 to get the element to 0.1 mole
144.1+22.2+176=342.3.
342.3/10=34.23g/0.1 mol
Now you can begin your experiment.
1. You need to bring two cups, in the first cup put 5.8433g of table salt and in the
second put 34.23g of sugar.
2. Then add in both 50g of water
3. Mix it to become a solution
4. Then measure it
5. When measuring the cup containing sugar, I got a value of 87.22g, and when
measuring the cup containing salt, I got a value of 57.43g.
As a conclusion, we can conclude that the one with the greater weight is the cup with sugar,
and the one with less weight is the cup with salt.
This experiment could be easily conducted by anyone even by a childe. It is safe to do in
home, there is no any equipment than can cause damage to anything or anyone.
The difference between the two elements is 87.22-57.43=29.79g