1. 1
Sarai Corte
September 14, 2020
E periment 01: Densit and Composition of
Solution
s
Professor Mohammad Salameh
2. 2
PURPOSE
This e periment aims to prepare sucrose solutions to determine
the percentage of sucrose
and their densit using the Direct and Archimedean method then
graphing our results to find the
percentage of sucrose in the unknown solution.
THEORY
3. For this e periment we needed to find the densit of the sucrose
solutions, to start we
began b attempting to find the percentage of sucrose b mass.
Based on the information given
to us in our data, to calculate this we can start b subtracting the
mass of the beaker (g) with the
sucrose b the mass of the empt beaker (g). To calculate the
percentage we also needed the
mass of sucrose and the mass of water:
Percentage b Weight of Sucrose =
a f c e
a f c e + a f a e 001
To calculate the densit we will use two different methods, the
first is the Direct Method
which will help us collect data involving the mass of the 10 mL
graduated c linder, masses of
4. the graduated c linder with the 10 mL of solutions, and the
volumes of solutions. Using this
method we need to divide the mass of the 10 mL graduated c
linder with the sucrose solution
minus the empt graduated c linder b the volume of sucrose
which is 10 mL:
Densit = e f c e (10 L)
( a f he g ad. c i de / c e i ) (e g ad. c i de )
The second method used is the Archimedean Method, with this
method we calculate the
densit b using the mass of the sinker (g), the mass of the
sinker in the solutions (g), and the
mass of the sinker in the water (g). The equation we will use is:
3
5. Densit =
1.0 g/ L
( a f i e i ai ) ( a f i e i H 2O)
( a f he i e i ai ) ( a f i e i i )
When we obtain all densities and percentages of sucrose b mass
we can put our
information in a line graph and predict the percentage of
sucrose in the unknown solution.
PROCEDURE
Goldwhite, H. et al. E e i e i Ge e a Che i ; California State
Universit , Los
Angeles, 2018; p 1-5
DATA
