Name amana DawcodSection 0A6Experiment 7Data and Calculations: Analysis of an Unknown ChlorideMolarity of standard AgNO3 solution 02000 MIIIIIIO.0CInitial buret readingO.o mLmLmL14.514.1Final buret reading13.85 mLmLmLVolume of AgNO3 used totitrate sample14.5 mL13,85 mLmL-44Moles of AGNO3 used totitrate sample2.77x10Z.90 X102.82x10Moles of Cl present in7.96x 107.77 x10Z.s2x10sampleVolume of dilutedL0.00.0mLmLmichloride solution pipettedTotal moles of Cl inZ.77x102.82x10100 mL vol flaskCI concentration indiluted solution in2.G0 x1O M2.77x10 MZ.&lxlo Mvolumetric flaskMean chloride2.83x10 MconcentrationStandard deviation inchloride concentrationUnknown #

Question
Asked Oct 31, 2019
15 views

How do I find the total moles of Cl in 100 mL flask and the Cl concentration? I don’t know if I need to use the 100 mL or the 10.0 mL of the diluted chloride pipetted.

Name amana Dawcod
Section 0A6
Experiment 7
Data and Calculations: Analysis of an Unknown Chloride
Molarity of standard AgNO3 solution 02000 M
I
II
III
O.0C
Initial buret reading
O.o mL
mL
mL
14.5
14.1
Final buret reading
13.85 mL
mL
mL
Volume of AgNO3 used to
titrate sample
14.5 mL
13,85 mL
mL
-4
4
Moles of AGNO3 used to
titrate sample
2.77x10
Z.90 X10
2.82x10
Moles of Cl present in
7.96x 10
7.77 x10
Z.s2x10
sample
Volume of diluted
L0.0
0.0
mL
mL
mi
chloride solution pipetted
Total moles of Cl in
Z.77x10
2.82x10
100 mL vol flask
CI concentration in
diluted solution in
2.G0 x1O M
2.77x10 M
Z.&lxlo M
volumetric flask
Mean chloride
2.83x10 M
concentration
Standard deviation in
chloride concentration
Unknown #
help_outline

Image Transcriptionclose

Name amana Dawcod Section 0A6 Experiment 7 Data and Calculations: Analysis of an Unknown Chloride Molarity of standard AgNO3 solution 02000 M I II III O.0C Initial buret reading O.o mL mL mL 14.5 14.1 Final buret reading 13.85 mL mL mL Volume of AgNO3 used to titrate sample 14.5 mL 13,85 mL mL -4 4 Moles of AGNO3 used to titrate sample 2.77x10 Z.90 X10 2.82x10 Moles of Cl present in 7.96x 10 7.77 x10 Z.s2x10 sample Volume of diluted L0.0 0.0 mL mL mi chloride solution pipetted Total moles of Cl in Z.77x10 2.82x10 100 mL vol flask CI concentration in diluted solution in 2.G0 x1O M 2.77x10 M Z.&lxlo M volumetric flask Mean chloride 2.83x10 M concentration Standard deviation in chloride concentration Unknown #

fullscreen
check_circle

Expert Answer

star
star
star
star
star
1 Rating
Step 1

Dilution factor:

help_outline

Image Transcriptionclose

Volume of final solution Dilution factor Volume of stock solution

fullscreen
Step 2

Reaction involve in titration:

fullscreen
Step 3

The molar ratio of Ag+ and Cl- is 1:1.

Total moles of Cl- in 100 mL volumetric flask is 2.82 * 10-4 * dilution factor = 2.82 * 10-4 * (100 / 10) = 2.82 * 10-3.

Similarly, for other two, the moles of Cl- in 100 mL volume...

help_outline

Image Transcriptionclose

moles in 100mL 2.82 x 10 mol 100 x10 L [Cr] =0.0282M I. Volumein L 2.77x 10 mo 100x10 L moles in 100mL [Cr]= =0.0277M II. | СI Volumein L moles in 100mL Volumein L 2.90x103mol [cr] = 0.0290 M III CI 100x103 L

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Physical Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Enter your answer in the provided box. The atomic masses of the two stable isotopes of copper,  6...

A: Average atomic mass is represented by the equation:

question_answer

Q: Commercially available concentrated sulfuric acid is 18.0 M H2SO4. Calculate the volume (in mL) of c...

A: Dilution is a process via which the concentration of a solution is decreased by adding extra solvent...

question_answer

Q: Magnesium oxide can be made by heating magnesium metal in the presence of oxygen. When 10.1g of magn...

A: The balanced chemical reaction between magnesium and oxygen is shown as,

question_answer

Q: Part A In terms of their attractive forces, explain why fats are solids but oils are liquids under n...

A: Fats and oils are known as one of the most abundant triglycerides as these are esters which are comp...

question_answer

Q: How would the unknowns molar mass be affected if a small piece of the foil cap was lost before the f...

A: It is very important to maintain the closed environment while dealing with volatile solvents.The bel...

question_answer

Q: Write mechanisms showing the conversion of benzyl chloride to benzyl alcohol by both Sn1 and Sn2 pat...

A: Click to see the answer

question_answer

Q: For the aqueous [Cu(NH3)4]^2+ complex =Kf=5.6x10^11 at 25°C.Suppose equal volumes of 0.0058M Cu(NO3)...

A: The overall formation constant for the reaction is shown in equation  (1) in which Kf is the overall...

question_answer

Q: how would heating the flask too long resulting in air outside the flask entering and displacing some...

A: Click to see the answer

question_answer

Q: Aluminum reacts with chlorine gas to form aluminum chloride via the formula pattern: 2Al + 3Cl2 ➝ 2A...

A: The limiting reactant is determined as,