Practice Data For Lab PracticalData Set 1• Stock KOH solution: 5.00M• Make 150.0 mL of 0.250M KOH fom the stock solution Show calculationVl=250M(150.0mL.)/5 M → V1=7.50mL• Mass of pure H;C,0.*2H;0 standard that will use about 15.0mL of 0 250M KOH=%3D05126/2-63 → mass/63-25(15) → Mass 0.05gStandardization of KOHMass of OxalicAcid DihydrateTrial 10.2360Trial 20.2371Trial 30.2364(g)Initial Volume of 0.00KOH (mL)Final Volume ofKOH (mL)14.8929.9214.8929.9244.95Calculate the molarity of KOH for each trial, the average concentration of KOH and theprecision of the three trialsTrial 1 |I just need help with the 3rd question,calculating the molarity.

Practice Data For Lab Practical Datz Set 1 • Stock KOH solution: 5.00M • Make 150.0 mL of 0.250M KOH from the stock solution Show calculation Vl-250M(150.0OmL)/5 M → V1=7.50mL • Mass of pure H;C,0.2H;0 standard that will use about 15.0mL of 0 250M KOH %3D 05 126/2-63 → mass/63-25(15) → Mass 0.05g Standardization of KOH Trial 1 0.2360 Trial 2 0.2371 Trial 3 0.2364 Mass of Oxalic Acid Dihydrate (g) Initial Volume of KOH (mL) Final Volume of KOH (mL) 0.00 14.89 29.92 14.89 29.92 44.95 Calculate the molarity of KOH for each trial, the average concentration of KOH and the precision of the three trials. Trial 1

Practice Data For Lab Practical Datz Set 1 • Stock KOH solution: 5.00M • Make 150.0 mL of 0.250M KOH from the stock solution Show calculation Vl-250M(150.0OmL)/5 M → V1=7.50mL • Mass of pure H;C,0.2H;0 standard that will use about 15.0mL of 0 250M KOH %3D 05 126/2-63 → mass/63-25(15) → Mass 0.05g Standardization of KOH Trial 1 0.2360 Trial 2 0.2371 Trial 3 0.2364 Mass of Oxalic Acid Dihydrate (g) Initial Volume of KOH (mL) Final Volume of KOH (mL) 0.00 14.89 29.92 14.89 29.92 44.95 Calculate the molarity of KOH for each trial, the average concentration of KOH and the precision of the three trials. Trial 1

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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Practice Data For Lab Practical
Data Set 1
• Stock KOH solution: 5.00M
• Make 150.0 mL of 0.250M KOH fom the stock solution Show calculation
Vl=250M(150.0mL.)/5 M → V1=7.50mL
• Mass of pure H;C,0.*2H;0 standard that will use about 15.0mL of 0 250M KOH=
%3D
05
126/2-63 → mass/63-25(15) → Mass 0.05g
Standardization of KOH
Mass of Oxalic
Acid Dihydrate
Trial 1
0.2360
Trial 2
0.2371
Trial 3
0.2364
(g)
Initial Volume of 0.00
KOH (mL)
Final Volume of
KOH (mL)
14.89
29.92
14.89
29.92
44.95
Calculate the molarity of KOH for each trial, the average concentration of KOH and the
precision of the three trials
Trial 1 |
I just need help with the 3rd question,
calculating the molarity.

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