1. Find the number of millimoles of solute in a. 226 mL of 0.320 M HC104. b. 25.0 L of 8.05 x 10-3 M K2CrO4. c. 6.00 L of an aqueous solution that contains 6.75 ppm of AgNO3. d. 537 mL of 0.0200 M KOH.
1. Find the number of millimoles of solute in a. 226 mL of 0.320 M HC104. b. 25.0 L of 8.05 x 10-3 M K2CrO4. c. 6.00 L of an aqueous solution that contains 6.75 ppm of AgNO3. d. 537 mL of 0.0200 M KOH.
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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Question
1. Find the number of millimoles of solute in
a. 226 ?? of 0.320 ? HClO4.
b. 25.0 ? of 8.05 ? 10−3 ? K2CrO4.
c. 6.00 ? of an aqueous solution that contains 6.75 ??? of AgNO3.
d. 537 ?? of 0.0200 ? KOH.
2. Describe the preparation of
a. 5.00 ? of 0.0500 ? KMnO4 from the solid reagent.
b. 4.00 ? of 0.250 ? HClO4, starting with an 8.00 ? solution of the reagent.
c. 400 ?? of a solution that is 0.0250 ? in I2, starting with MgI2.
d. 200 ?? of 1.00% (?/?) aqueous CuSO4 from a 0.365 ? CuSO4 solution.
e. 1.50 ? of 0.215 ? NaOH from the concentrated commercial reagent [50% NaOH
(w/w), ?? ?? = 1.525].
f. 1.50 ? of a solution that is 12.0 ??? in K+, starting with solid K4Fe(CN)6.
3. Exactly 75.00 ?? of a 0.3132 ? solution of Na2SO3 were treated with 150.0 ?? of
0.4025 ? HClO4 and boiled to remove the SO2 formed.
a. What was the mass in grams of SO2 that was evolved?
b. What was the concentration of the unreacted reagent (Na2SO3 or HClO4) after thereaction was complete?
![10:01
0 l 4 O7
QuantiChem.Module02.2021..
BICOL STATE COLLEGE OF APPLIED SCIENCES AND TECHNOLOGY
City of Naga
MODULE 0O
By definition, the molar concentration is the number of moles of Na2CO3/L. Therefore,
1.50 × 10-³ mol Na,CO3
1000 mŁ
(Na¿CO,
= 0.0200 M Na,CO;
(50.0 + 25.0) mŁ
1 L
LEARNING ACTIVITIES
Activity 2: Stoichiometry
Direction: Answer the following items.
Copy and answer the problem.
Write your solution in a separate clean sheet of paper. Afterwards, you may either scan
(PDF format) it or take a photo (JPEG format) of it and upload them in your
Quantitative Chemistry Google classroom. Class code: qgoekks
Keep a record, or file, of your output for your portfolio (either e-portfolio or hardcopy)
1. Find the number of millimoles of solute in
а. 226 mL of 0.320 M HCIО4.
b. 25.0 L of 8.05 x 10–3 M K»CrO4.
c. 6.00 L of an aqueous solution that contains 6.75 ppm of AgNO3.
d. 537 mL of 0.0200 M KOH.
2. Describe the preparation of
a. 5.00 L of 0.0500 M KMnO4 from the solid reagent.
b. 4.00 L of 0.250 M HC104, starting with an 8.00 M solution of the reagent.
c. 400 mL of a solution that is 0.0250 M in I2, starting with MgI2.
d. 200 mL of 1.00% (w/v) aqueous CUSO4 from a 0.365 M CUSO4 solution.
1.50 L of 0.215 M NaOH from the concentrated commercial reagent [50% NaOH
(w/w), sp gr = 1.525].
1.50 L of a solution that is 12.0 ppm in K†, starting with solid K,Fe(CN)6.
е.
f.
3. Exactly 75.00 mL of a 0.3132 M solution of Na2SO3 were treated with 150.0 mL of
0.4025 M HCIO4 and boiled to remove the SO2 formed.
a. What was the mass in grams of SO2 that was evolved?
b. What was the concentration of the unreacted reagent (Na2SO3 or HC1O,) after
the reaction was complete?
Deadline of Submission: 8 April 2021
COLLEGE OF ARTS AND SCIENCES
PAGE 21 OF 24](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fee0be31b-2c90-4628-a1e4-d2d8d86c9577%2F0549bcfe-ef3b-4670-88db-ae9b1874c325%2Fd3fo6c7_processed.jpeg&w=3840&q=75)
Transcribed Image Text:10:01
0 l 4 O7
QuantiChem.Module02.2021..
BICOL STATE COLLEGE OF APPLIED SCIENCES AND TECHNOLOGY
City of Naga
MODULE 0O
By definition, the molar concentration is the number of moles of Na2CO3/L. Therefore,
1.50 × 10-³ mol Na,CO3
1000 mŁ
(Na¿CO,
= 0.0200 M Na,CO;
(50.0 + 25.0) mŁ
1 L
LEARNING ACTIVITIES
Activity 2: Stoichiometry
Direction: Answer the following items.
Copy and answer the problem.
Write your solution in a separate clean sheet of paper. Afterwards, you may either scan
(PDF format) it or take a photo (JPEG format) of it and upload them in your
Quantitative Chemistry Google classroom. Class code: qgoekks
Keep a record, or file, of your output for your portfolio (either e-portfolio or hardcopy)
1. Find the number of millimoles of solute in
а. 226 mL of 0.320 M HCIО4.
b. 25.0 L of 8.05 x 10–3 M K»CrO4.
c. 6.00 L of an aqueous solution that contains 6.75 ppm of AgNO3.
d. 537 mL of 0.0200 M KOH.
2. Describe the preparation of
a. 5.00 L of 0.0500 M KMnO4 from the solid reagent.
b. 4.00 L of 0.250 M HC104, starting with an 8.00 M solution of the reagent.
c. 400 mL of a solution that is 0.0250 M in I2, starting with MgI2.
d. 200 mL of 1.00% (w/v) aqueous CUSO4 from a 0.365 M CUSO4 solution.
1.50 L of 0.215 M NaOH from the concentrated commercial reagent [50% NaOH
(w/w), sp gr = 1.525].
1.50 L of a solution that is 12.0 ppm in K†, starting with solid K,Fe(CN)6.
е.
f.
3. Exactly 75.00 mL of a 0.3132 M solution of Na2SO3 were treated with 150.0 mL of
0.4025 M HCIO4 and boiled to remove the SO2 formed.
a. What was the mass in grams of SO2 that was evolved?
b. What was the concentration of the unreacted reagent (Na2SO3 or HC1O,) after
the reaction was complete?
Deadline of Submission: 8 April 2021
COLLEGE OF ARTS AND SCIENCES
PAGE 21 OF 24
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