Exp 8 - Decomposition
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Decomposition
VIDEO LINKS:
Lab Experiments (Write protocols and perform experiments based on these):
1.
Decomposition of Baking Soda
Data analysis and calculations (Use these if you need help with your data and interpretations)
1.
Stoichiometry
2.
Percent yield
3.
Interpreting Chemical Equations
The prelab must include Experimental Protocol, Chemical Table and Equipment Table.
The lab report requires all sections (including prelab sections) to be completed in one document.
Experimental Protocol
(Analysis) Watch the experiment videos. Take notes on the protocol. Stop the video and re-watch as
necessary to acquire the details of the procedure. Write out the protocol for each part of the experiment. (It can be written in sequential steps. Complete sentences are not necessary.) This is the protocol you will follow, so be detailed. Chemical Table
(Representation) Prepare your chemical table including the materials you will use in the experiment. Here is a general template that you may use.
Chemical
Name
Chemical
Formula
Molar Mass (g/mol)
Hazards
reference
PPE
Sodium Chloride
NaCl
58.5
Skin irritation
https://fscimage.fishersci.com/msds/21105.htm
Decomposition is shared under a CC BY-NC-SA 4.0
license and was authored, and/or curated by Dr. Eszter Trufan
and Dr.
Elene Bouhoutsos-Brown
to the style and standards of the Experimentium platform.
CC BY-NC-SA 4.0
2
Equipment Table
(Analysis) Identify the equipment (type AND size) needed for the experiment and include the name and an image of each. Be sure to describe the equipment, how to use it, and why it is suitable for this
use.
Equipment Name
Equipment Picture
Intended Purpose
Data Collection
(Acquiring competencies) Following your detailed protocol based on the videos, perform all the experiments. Record your observations and take pictures of your key steps in the process. Your observations and images need to be incorporated in your data section and this section should be as detailed as possible as you will use this information to complete your discussion.
Your preview ends here
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Related Questions
None
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Now let's use these total masses to figure out how much CO2 was generated by the experiment.
Remember, the amount of CO2 generated is the mass lost after the reaction, all of the other products
are still in the cups. Calculate both the grams and moles of CO2.
Sample Data for Vinegar Lab
Total Mass of
Total Mass of
Baking Soda & Baking Soda &
g CO2 Produced by moles CO2 Produced by
Vinegar Cups Vinegar Cups (g,
post)
Reaction
Reaction
(g, pre)
-2 g
56.94
44.26
NaHCO3
-4 g
59.59
57.55
NaHCO3
-6 g
63.37
61.07
NaHCO3
-8 g
66.68
64.58
NaHCOз
-10 g
69.81
67.66
NaHCO3
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hello please help using the completed table
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Using the data provided in Table 1 to fill in the blanks on table 2
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Help me find the expected mass of calcium carbonate (g)
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In the PHET simulation, click on the Game icon at the bottom of the screen. Balance the given chemical equations by changing the coefficients placed before each compound and then clicking Check. When a reaction is balanced
correctly a yellow face will appear with a smile.
After practicing with the game, balance the given chemical equations without use of the simulation.
Drag the appropriate labels to their respective targets. Leave the target empty for a coefficient of 1.
• View Available Hint(s)
Reset
Help
3
NaOH
O Na,C,0,
4
H,C,0,
Fe, 0,
Fe
co2
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Can you please complete and check if the answers are correct!!! Thank you in advance!!
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DIRECT ANSWER NO NEED EXPLANATION.
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Studying for an exam and this is a sample lab from YouTube. Hoping you can form an answer key for me. Thank you.
Watch the video “Decomposition of Sodium Bicarbonate (baking soda)and use the data in the video to answer the questions in the sample lab report. Thank you.
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Routine Chemical Tests for Urine - Word
Table Tools
Decy Joy Garriel
Table Design
O Tell me what you want to do
2 Share
File
Home
Insert
Draw
Design
Layout
References
Mailings
Review
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Layout
X Cut
P Find
Calibri (Body)
12
A A
Aa v
AaBbCcD AaBbCcDc AaBbCcDc AaBbC AaBbCcC AaBbC AaBbCcD
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A Select
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Editing
COLLEGE OF HEALTH SCIENCES
RESULTS AND OBSERVA TIONS:
PARTI: BENEDICTS TEST FOR REDUCING SUGARS
田
TUBE
PATIENT
COLOR
RESULT and
NO.
Before: Blue-green
OBSERVATION
WHITE PRECIPITATE:
1
Normal Patient 1
After: Greenish brown
2
Normal Patient 2
Before: Blue
LIGHT GREEN
After: Green
PRECIPITA TE:
3
WHILTE AND YELLOW
Pathologic Patient 1
Before: Blue
PRECIPITATE:
After: Green
BRICK RED
Before: Blue-green
After: Brick Red
Pathologic Patient 2
PRECIPITATE:
Generalization:
Page 5 of 8
947 words
English (Philippines)
K…
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Tab
Window
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Tools
Profiles
History
Favorites
File
Edit
View
Microsoft Edge
x +
O Schoology
A In the reaction listed below, wi x
...
Ô https://utica.schoology.com/common-assessment-delivery/start/... to
v Lesson Outline - P.
M Gmail 6 Home
O YouTube A Maps e Login for ucs
RETAKE Unit 8 Test
Set up the conversion chart below to find how many grams are in 5.3 moles of CaBr,?
:: 1 mole CABR2
:: 6.022e23 molecules CaBr2
: 1,060 g CaBr2
:: 1g CaBr,
:: 0.027 g CaBr2
:: 1 molecule CaBr,
:: 5.3 moles CaBr2
:: 200 g CaBr2
3.
4
5
6
7
8
10 11
12
Nex
tv
%23
24
2
3
4
5
6
8
tab
Q
W
E
R
Y
aps lock
A
D
G
K
C
V
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Using the information from number 2, calculate the empirical and molecular formula for the scenario and then the chemical compound.
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The image uploaded answer is not allowed please bro hero expert
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Calculate the theoretical yield (in grams) of magnesium oxide in your experiment in both trial 1 and 2
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correct
statement is?
a. Safety glasses should be
worn in a laboratory at all
times to decrease the
likelihood of eye injury.
b. Safety shower would
immediately be used if
your clothing caught fire
or if a large chemical spill
had occurred on your
clothing.
O c. It is not allowed to smoke
in the lab.
o d. If you have accidentally
broken a test tube and
spilled a chemical on the
table, Caution your lab
partners to avoid the area
while you inform the
teacher of the small
accident.
e. Use the eye-wash fountain
,then notify the instructor
if a chemical gets in the
eye.
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Ascorbic acid (CoH3O6) is also known as Vitamin C.
How many molecules of CH¿O6 does a Vitamin C
9.
drink with 1.000 × 10³ mg C6H3O6 contain?
STARTING AMOUNT
ADD FACTOR
DELETE
ANSWER
RESET
*( )
G
176.12
1
88.07
mg
3.419 × 1024
3.419 x 1021
0.001
molec
2.925 x 10-22
2.925 x 10-16
2.925 x 1016
g
2.925 x 10-19
5.68 x 1020
1.000 x 103
mo
6.022 x 1023
5.68 x 10-3
3.419 x 10-2
g/m
6.022 x 1022
2.925 x 1022
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openvellum ecollege.com/course.html?courseld=16903471&0penvellumHMAC=041020UD6609 TUCTD3247D2609418712#T030T
Constants Periodic Table
To solve stoichiometry problems, you must always
calculate numbers of moles. Recall that molarity,
M, is equal to the concentration in moles per liter:
M = mol/L.
When solutions of silver nitrate and potassium chloride are mixed, silver chloride precipitates out of solution
according to the equation
AGNO3 (aq) + KCI(aq)→AgCl(s) + KNO3(aq)
Part A
What mass of silver chloride can be produced from 1.47 L of a 0.156 M solution of silver nitrate?
Express your answer with the appropriate units.
• View Available Hint(s)
?
mass of AgCl =
Value
Units
Submit
Part B
P Pearson
Copyright © 2021 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy I Permissions I Contact Us I
10:05
acer
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Please send me the question in 20 minutes it's very urgent plz
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5
please help! *urgent*
write as many accurate and relevant statements about the picture below. please write more than 5 correct descriptions/statements. please be as descriptive as possible.
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Please answer fast i give you upvote.
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Please assist
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ne Aspen Toblery
Name
_Date 03-28-24 per 8
LAB ACTIVITY: Salt Water Mixture and Percent Yield
PRELAB:
1) What does percent mean?
A specified ammount.
Example #1: What percent of this class is 15 years old?
%
2) What does yield mean? a measure of quanity of moles-
Example #2: Last year, a local farmer had a yield of 90 kilograms of grapes.
What if this farmer expected to grow 110 kilograms of grapes on that piece of land? Was this a
good year or a bad year? How do you know?
3) What would % yield mean?
Show work for calculating % yield for example #2.
Example #3: What if the farmer had actually produced 120 kilograms instead? Was this a
good year or bad year?
Show work for expressing it in percent yield.
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Laboratory Questions (edited)
Put answers on a separate piece of paper and provide enough room for instructor comments.
1. Based on the procedure of this experiment, explain the effect of the following actions on the
assessed masses of the components indicated. Where indicated, also address the effect on the
percent recovery (Part D of the experiment). The choices include: lower, higher, no effect or
could be higher or lower. If the answer could be higher or lower, provide a detailed
explanation.
a) Sublimation of NH4CI was not complete. How does this situation affect the calculated
mass of NH4CI and the percent recovery?
b) While decanting, some of the salty water was spilled onto the lab bench. How does this
situation affect the calculated mass of NaCl and the percent recovery?
c) While decanting, some of the sand was inadvertently transferred to the second
evaporating dish. How does this situation affect the masses of NaCl and sand (SiO2) and
the percent recovery?
d) While weighing…
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Which practice is NOT used to gauge accuracy?
raw data and results from calibration checks
B.
fortification recoveries
(c quality control samples
blank samples
E sample replications
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3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industria
strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water.
Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume o
vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below.
Volcano # 1
Volume of gas produced (mL.) vs. Time (s) for Volcano #1
Time
Volume of gas
(s)
produced (ml)
60
E 50
10
20
30
25
8 40
38
46
30
20
Volume of gas
produced (ml)
40
50
50
60
52
of
10
53
20
40
60
80
Time (s)
Volcano # 2
Volume of gas
Volume of gas produced…
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On rare occasions, faculty members have to produce reactants for their students to use.
Students are similar to the judges on the show; they don't care about the sabotages or what the faculty member had to endure.
However they expect reactants for their experiments to be available when they hit the lab.
If I (the faculty member) come out of the stockroom with the following basket of reactants: (There may be a few I do not use or
need... sort-of like having broccoli in the basket for making bacon and eggs sunny side up..):
• HCI
• HBr
• hydrogen peroxide
• 2-methyl-1-butene (fresh bottle, still with its seal unbroken, distilled and stored under nitrogen
• 2-methyl-2-butene (fresh bottle, still with its seal unbroken,distilled and stored under nitrogen.
• a cylinder of chlorine gas
• a cylinder of bromine gas
Tell me how you will prepare the following:
A) You need to prepare 2-chloro-2-methylbutane as the only product of a chemical reaction.
B) You need to prepare 1-bromo-2-methylbutane…
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Find the Final volume of buret (mL) and the Concentration of NaOH (M )
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Home
Tools
Lab Experiment #... x
...
+)
玩,
1
| 2
97.4%
Record
your
observations following each reaction including changes in color and state of matter.
AGNO3 (Ag*)
Pb(NO3)2 (Pb²*)
Ca(NO3)2 (Ca²+)
а
e
i
NazCO3
Light orange solid
white, cloudy solid
white, cloudy, solid
(СО2)
b
NaOH
f
dark brown solid
stay clear, liquid
white, cloudy solid
(OH)
g
k
NazSO4
stay clear, liquid
white, cloudy, solid
white, cloudy, solid
(SO?)
d
NaCl
1
white, cloudy solid
white, cloudy solid
stay clear, liquid
(CF)
....
Remember to complete and submit this table to your instructor before the end of the class session.
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I need help constructing graph I m not sure where to put values
On the graph paper plot a graph of your reaction rates vs. concentration by using
vertical scale or Y-axis representing reaction rate and a horizontal scale or X-axis
representing mls of solution #1(KIO3).
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16
You need to make an aqueous solution of 0.237 M cobalt(II) fluoride for an experiment in lab, using a 250 mL volumetric flask. How much solid cobalt(II)
fluoride should you add?
grams
Submit Answer
Review Topics]
[References]
Use the References to access important values if needed for this question.
Retry Entire Group
8 more group attempts remaining
Cengage Learning Cengage Technical Support
Previous
Next>
Save and Exit
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What are the possible sources of error when reacting sodium bicarbonate and hydrochloric acid within an evaporating dish over wire gauze over a bunsen burner? Procedure of the lab down below.
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mposition of KCIO, Lab
Format Tools Add-ons Help Accessibilit
Comfortaa
BIUA
Normal text
14
Claim, Evidence, Reasoning for
The Decomposition of Potassium Chlorate (KCIO,)
Question/Problem: what is the composition of potassium chlorate (KCIO,) in a mixture of
potassium chlorate and potassium chloride (KCI)?
Discussion/Background:
ive selationships in a chemical reaction is called stoichiometry.
chlorate (KCIO) decomposes. Oxygen gas is released and potassium
chlond
is formed during the reaction.
KC10, e)
KCl, + O2 (g)
3. The decomposition is aided by the presence of a cotalyst, manganese dioxide. The MnO, will
reaction process.
the original mixture remains unchanged when heated.
remain unchanger
4. The potassium chloride
Objective:
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Related Questions
- Nonearrow_forwardNow let's use these total masses to figure out how much CO2 was generated by the experiment. Remember, the amount of CO2 generated is the mass lost after the reaction, all of the other products are still in the cups. Calculate both the grams and moles of CO2. Sample Data for Vinegar Lab Total Mass of Total Mass of Baking Soda & Baking Soda & g CO2 Produced by moles CO2 Produced by Vinegar Cups Vinegar Cups (g, post) Reaction Reaction (g, pre) -2 g 56.94 44.26 NaHCO3 -4 g 59.59 57.55 NaHCO3 -6 g 63.37 61.07 NaHCO3 -8 g 66.68 64.58 NaHCOз -10 g 69.81 67.66 NaHCO3arrow_forwardhello please help using the completed tablearrow_forward
- Using the data provided in Table 1 to fill in the blanks on table 2arrow_forwardHelp me find the expected mass of calcium carbonate (g)arrow_forwardIn the PHET simulation, click on the Game icon at the bottom of the screen. Balance the given chemical equations by changing the coefficients placed before each compound and then clicking Check. When a reaction is balanced correctly a yellow face will appear with a smile. After practicing with the game, balance the given chemical equations without use of the simulation. Drag the appropriate labels to their respective targets. Leave the target empty for a coefficient of 1. • View Available Hint(s) Reset Help 3 NaOH O Na,C,0, 4 H,C,0, Fe, 0, Fe co2arrow_forward
- Can you please complete and check if the answers are correct!!! Thank you in advance!!arrow_forwardDIRECT ANSWER NO NEED EXPLANATION.arrow_forwardStudying for an exam and this is a sample lab from YouTube. Hoping you can form an answer key for me. Thank you. Watch the video “Decomposition of Sodium Bicarbonate (baking soda)and use the data in the video to answer the questions in the sample lab report. Thank you.arrow_forward
- Routine Chemical Tests for Urine - Word Table Tools Decy Joy Garriel Table Design O Tell me what you want to do 2 Share File Home Insert Draw Design Layout References Mailings Review View Help Layout X Cut P Find Calibri (Body) 12 A A Aa v AaBbCcD AaBbCcDc AaBbCcDc AaBbC AaBbCcC AaBbC AaBbCcD EE Copy ab. Replace Paste BIU v abe X, x A v aly - A - I Normal No Spacing I No Spac. Heading 1 Heading 2 Heading 3 Heading 4 A Select Format Painter Clipboard Font Paragraph Styles Editing COLLEGE OF HEALTH SCIENCES RESULTS AND OBSERVA TIONS: PARTI: BENEDICTS TEST FOR REDUCING SUGARS 田 TUBE PATIENT COLOR RESULT and NO. Before: Blue-green OBSERVATION WHITE PRECIPITATE: 1 Normal Patient 1 After: Greenish brown 2 Normal Patient 2 Before: Blue LIGHT GREEN After: Green PRECIPITA TE: 3 WHILTE AND YELLOW Pathologic Patient 1 Before: Blue PRECIPITATE: After: Green BRICK RED Before: Blue-green After: Brick Red Pathologic Patient 2 PRECIPITATE: Generalization: Page 5 of 8 947 words English (Philippines) K…arrow_forwardTab Window Help Tools Profiles History Favorites File Edit View Microsoft Edge x + O Schoology A In the reaction listed below, wi x ... Ô https://utica.schoology.com/common-assessment-delivery/start/... to v Lesson Outline - P. M Gmail 6 Home O YouTube A Maps e Login for ucs RETAKE Unit 8 Test Set up the conversion chart below to find how many grams are in 5.3 moles of CaBr,? :: 1 mole CABR2 :: 6.022e23 molecules CaBr2 : 1,060 g CaBr2 :: 1g CaBr, :: 0.027 g CaBr2 :: 1 molecule CaBr, :: 5.3 moles CaBr2 :: 200 g CaBr2 3. 4 5 6 7 8 10 11 12 Nex tv %23 24 2 3 4 5 6 8 tab Q W E R Y aps lock A D G K C Varrow_forwardUsing the information from number 2, calculate the empirical and molecular formula for the scenario and then the chemical compound.arrow_forward
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SEE MORE QUESTIONS
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- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY