2) Write the balanced equation for the thermal decomposition of copper(II) sulfate hydrate, based on the average ratio of moles of water to copper(II) sulfate that you obtained from your calculations.
2) Write the balanced equation for the thermal decomposition of copper(II) sulfate hydrate, based on the average ratio of moles of water to copper(II) sulfate that you obtained from your calculations.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Can you answer question number 2( the one that starts with write a balanced equation) that I have attached below based on my calculations also below.

Transcribed Image Text:Name:
Section and Group:
Date:
2) Write the balanced equation for the thermal decomposition of copper(II) sulfate hydrate, based
on the average ratio of moles of water to copper(II) sulfate that you obtained from your
calculations.
3) Is the decomposition of copper(II) sulfate hydrate a physical change or a chemical change?
Explain.
No ben ds are
being formed or breben so it wald
a physical chenge
4) The actual ratio for moles of water/ moles of copper(II)hydrate is 5.
Use the formula to determine your percent difference:
% difference = [5 – student value| x 100%
%3D

Transcribed Image Text:Name:
Section and Group:
Date:
Stoichiometry of Hydrate Decomposition - Lab Report
Pay attention to the number of significant digits in the calculations.
Observations
blue, griny/fne blese fue texture
sture
Observations of fresh
copper(II) sulfate hydrate
geanrble/gray.mted
celer /
ight graen/grady
Observations of heated
copper(II) sulfate
locks lilke ched
pouder
Trial 1
Trial 2
Data
Record 3 decimal places
51.917g
51.921
Mass of evaporating dish
Mass fresh copper(II)
sulfate hydrate
1,015g
-717g
Mass of dish and heated
52.561g 52.3709
copper(II) sulfate
Calculations
Record 3 decimal places
for masses
- 449g
Molar mas of anhudrus 59.629/ml 159. 62g/md
Mass heated copper(II)
sulfate
Molar mass of anhydrous
(no water) copper(II) sulfate
Record 3 sig figs for
calculations
Moles of copper(II) sulfate
(after heating)
Mass of water lost
(= mass of fresh copper(II)
sulfate – mass of heated
59.42
copper(II) sulfate)
18.0 Ve ghol 18.016 glmdl
Molar mass of water
-2
nd
Moles of water lost
371
T8-a4
Ratio of moles of water/
moles of copper(II) sulfate
Your ratio:
Your ratio:
5.30ml
5.11 métll
5-21 mdl
Average ratio:
Questions
1) Show your calculations for your Trial 1:
Show all work with units.
52.370
- 51.921=449
52.5af :' st.91구= .G44 9
(You do not need to show work -444
for calculation of molar mass)
4.03
.717-.449
32-SGl
LelS - -G44
1.008 x2 416
CHM111 Hydrate Decomposition Stoichiometry
Page 1
이141
1.49 xl02mcl HO
2-8/x103mcl
5.3nl
268
. O15
18.016 glar thio
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