23A 0.20 g sample of primary standard Na2C204 (134 g/mol) needed 37.22 mL of of KMNO4 solution to reach the end point. What is the molarity of KMN04 reagent 1. O a. 0.016 M Ob. 0.055 M Oc 0.008 M O d. 0.100 M Standard solutions of most reductants are used in back titration because. 2 a. Their reactions with the analyte are very slow b. The endpoints can't be detected C They undergo reaction with atmospheric oxygen d. All of the above Which of the following statements is incorrect a. A primary-standard grade salt of cerium(IV) is available b. cerium (IV) solutions decompe slowly thus require occasional restandardization. C. Solutions of cerium (IV) in sulfuric acid are more stable than those of KMNO, d. KMNO, solution is more widely used than cerium(IV) solution as an oxidizing agent.
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Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
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Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
![23A 0.20 g sample of primary standard Na2C204 (134 g/mol) needed 37.22 mL of of KMN04
solution to reach the end point. What is the molarity of KMNO4 reagent
1.
O a. 0.016 M
Ob. 0.055 M
Oc 0.008 M
Od. 0.100M
Standard solutions of most reductants are used in back titration because.
2
a.
Their reactions with the analyte are very slow
b. The endpoints can't be detected
They undergo reaction with atmospheric oxygen
d. All of the above
Which of the following statements is incorrect
a. A primary-standard grade salt of cerium(IV) is available
b. cerium (IV) solutions decomse slowly thus require occasional restandardization.
c. Solutions of cerium (IV) in sulfuric acid are more stable than those of KMNO,
. KMNO, solution is more widely used than cerium(IV) solution as an oxidizing agent.
Which statement is correct when using bromine as an oxidant
O a. Measured excess of standard bromate is added to the sample plus an excess of
potassium bromide, excess bromine is titrated with Iodide ion
Ob.
Excess of potassium bromide is added to the sample, excess bromide is titrated with
lodide ion
O C. Excess of standard bromate is added to the solution, then excess bromate is determined
by its titration against Iodide ion
Excess of standard bromate is added to the solution, then excess bromate is determined
by its titration against lodide ion](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feaa6cfc7-9f0a-4e04-a275-7c1a3bb75049%2F9d780a22-7787-49d5-b604-0727c23423c4%2Fwycx1b_processed.jpeg&w=3840&q=75)
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