< Part B.: Determination of Oxidation Number Changes for Reducing Agents > If you use [KMnO4] = 0.0252 M, Concentration of FeSO4 · 7 H2O = 5.70 g/L Using a 100-mL graduated cylinder, 50 mL sample of FeSO4*7 H2O will be measured out. To each sample of FeSO4 · 7 H2O, add 10.0 mL of H2SO4 and 10 mL of H3PO4 Concentration of SnCl2 2 H2O = 2.85 g/mL Using a 100-mL graduated cylinder, 50.0 mL sample of SnCl2 2 H2O will be measured out. No additional acid is needed. #1 #1 KMnO KMnO Sampl 4 4 e # Initial Final buret, buret, mL mL FeSO4 • 7 12.05 21.51 H2O SnCl2 0.07 9.54 2 H2O Question) Answer the following questions. < Part A.: Standardization of KMnO4 solution > Question) If the dispensed volume (mL) of Na2C2O4 = 26.27 mL, the dispensed volume (mL) of KMnO4 = 26.23 mL and [Na2C2O4] = 0.0531 M, determine the molarity (M) of KMnO4. 1) In this case, your answer should be in scientific notation (for example, 1.23*10^-1, not 0.123,) with the correct number of significant figures. Also follow the unit specified in each question. Do NOT put its unit in your answer because its unit is shown already in the questions. 2) It means students shouldn't include any letters or text in the "Numeric answers", because otherwise it'll be marked wrong even if the numbers are correct. Type your answer...

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
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< Part B.: Determination of Oxidation Number
Changes for Reducing Agents >
If you use [KMnO4] = 0.0252 M,
Concentration of FeSO4 · 7 H2O = 5.70 g/L
Using a 100-mL graduated cylinder, 50 mL sample of
FeSO4*7 H2O will be measured out.
To each sample of FeSO4 · 7 H2O, add 10.0 mL of
H2SO4 and 10 mL of H3PO4
Concentration of SnCl2 2 H2O = 2.85 g/mL
Using a 100-mL graduated cylinder, 50.0 mL
sample of SnCl2 2 H2O will be measured out.
No additional acid is needed.
#1
#1
KMnO
KMnO
Sampl 4
4
e #
Initial
Final
buret,
buret,
mL
mL
FeSO4
• 7
12.05 21.51
H2O
SnCl2
0.07
9.54
2 H2O
Question) Answer the following questions.
Transcribed Image Text:< Part B.: Determination of Oxidation Number Changes for Reducing Agents > If you use [KMnO4] = 0.0252 M, Concentration of FeSO4 · 7 H2O = 5.70 g/L Using a 100-mL graduated cylinder, 50 mL sample of FeSO4*7 H2O will be measured out. To each sample of FeSO4 · 7 H2O, add 10.0 mL of H2SO4 and 10 mL of H3PO4 Concentration of SnCl2 2 H2O = 2.85 g/mL Using a 100-mL graduated cylinder, 50.0 mL sample of SnCl2 2 H2O will be measured out. No additional acid is needed. #1 #1 KMnO KMnO Sampl 4 4 e # Initial Final buret, buret, mL mL FeSO4 • 7 12.05 21.51 H2O SnCl2 0.07 9.54 2 H2O Question) Answer the following questions.
< Part A.: Standardization of KMnO4 solution >
Question) If the dispensed volume (mL) of Na2C2O4
= 26.27 mL, the dispensed volume (mL) of KMnO4 =
26.23 mL and [Na2C2O4] = 0.0531 M, determine
the molarity (M) of KMnO4.
1) In this case, your answer should be in scientific
notation (for example, 1.23*10^-1, not 0.123,) with
the correct number of significant figures. Also
follow the unit specified in each question. Do NOT
put its unit in your answer because its unit is shown
already in the questions.
2) It means students shouldn't include any letters or
text in the "Numeric answers", because otherwise
it'll be marked wrong even if the numbers are
correct.
Type your answer...
Transcribed Image Text:< Part A.: Standardization of KMnO4 solution > Question) If the dispensed volume (mL) of Na2C2O4 = 26.27 mL, the dispensed volume (mL) of KMnO4 = 26.23 mL and [Na2C2O4] = 0.0531 M, determine the molarity (M) of KMnO4. 1) In this case, your answer should be in scientific notation (for example, 1.23*10^-1, not 0.123,) with the correct number of significant figures. Also follow the unit specified in each question. Do NOT put its unit in your answer because its unit is shown already in the questions. 2) It means students shouldn't include any letters or text in the "Numeric answers", because otherwise it'll be marked wrong even if the numbers are correct. Type your answer...
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