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When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.?
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When potassium permanganate is titrated against ferrous ammonium sulph...
Explanation:
When potassium permanganate (KMnO4) is titrated against ferrous ammonium sulphate (Fe(NH4)2(SO4)2), the reaction that takes place is as follows:
5Fe(NH4)2(SO4)2 + KMnO4 + 8H2SO4 → 5FeSO4 + MnSO4 + K2SO4 + 8(NH4)2SO4 + 8H2O
From the balanced equation, we can see that 1 mole of KMnO4 reacts with 5 moles of Fe(NH4)2(SO4)2.
The equivalent weight of a substance is defined as the molecular weight divided by the number of equivalents. An equivalent is the amount of a substance that can react with 1 mole of a reference substance.
In this case, the reference substance is ferrous ammonium sulphate (Fe(NH4)2(SO4)2), and it reacts with 1 mole of KMnO4. Therefore, the equivalent weight of KMnO4 is equal to its molecular weight divided by 1.
To calculate the equivalent weight of KMnO4, we need to know its molecular weight. The molecular weight of KMnO4 is:
K (potassium) = 39.1 g/mol
Mn (manganese) = 54.9 g/mol
O (oxygen) = 16.0 g/mol (x4 since there are 4 oxygen atoms)
Molecular weight of KMnO4 = 39.1 + 54.9 + (16.0 x 4) = 39.1 + 54.9 + 64.0 = 158 g/mol
Therefore, the equivalent weight of KMnO4 is 158 g/mol.
Now, we can calculate the equivalent weight of KMnO4 when it reacts with ferrous ammonium sulphate (Fe(NH4)2(SO4)2). Since 1 mole of KMnO4 reacts with 5 moles of Fe(NH4)2(SO4)2, the equivalent weight of KMnO4 is:
Equivalent weight of KMnO4 = Molecular weight of KMnO4 / 5
= 158 g/mol / 5
= 31.6 g/mol
The closest option to 31.6 g/mol is option b) Mol. Wt./5, which implies dividing the molecular weight of KMnO4 by 5. Thus, the correct answer is b) Mol. Wt./5.
When potassium permanganate (KMnO4) is titrated against ferrous ammonium sulphate (Fe(NH4)2(SO4)2), the reaction that takes place is as follows:
5Fe(NH4)2(SO4)2 + KMnO4 + 8H2SO4 → 5FeSO4 + MnSO4 + K2SO4 + 8(NH4)2SO4 + 8H2O
From the balanced equation, we can see that 1 mole of KMnO4 reacts with 5 moles of Fe(NH4)2(SO4)2.
The equivalent weight of a substance is defined as the molecular weight divided by the number of equivalents. An equivalent is the amount of a substance that can react with 1 mole of a reference substance.
In this case, the reference substance is ferrous ammonium sulphate (Fe(NH4)2(SO4)2), and it reacts with 1 mole of KMnO4. Therefore, the equivalent weight of KMnO4 is equal to its molecular weight divided by 1.
To calculate the equivalent weight of KMnO4, we need to know its molecular weight. The molecular weight of KMnO4 is:
K (potassium) = 39.1 g/mol
Mn (manganese) = 54.9 g/mol
O (oxygen) = 16.0 g/mol (x4 since there are 4 oxygen atoms)
Molecular weight of KMnO4 = 39.1 + 54.9 + (16.0 x 4) = 39.1 + 54.9 + 64.0 = 158 g/mol
Therefore, the equivalent weight of KMnO4 is 158 g/mol.
Now, we can calculate the equivalent weight of KMnO4 when it reacts with ferrous ammonium sulphate (Fe(NH4)2(SO4)2). Since 1 mole of KMnO4 reacts with 5 moles of Fe(NH4)2(SO4)2, the equivalent weight of KMnO4 is:
Equivalent weight of KMnO4 = Molecular weight of KMnO4 / 5
= 158 g/mol / 5
= 31.6 g/mol
The closest option to 31.6 g/mol is option b) Mol. Wt./5, which implies dividing the molecular weight of KMnO4 by 5. Thus, the correct answer is b) Mol. Wt./5.
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When potassium permanganate is titrated against ferrous ammonium sulph...
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When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.?
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When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.?.
When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is a) Mol. Wt./10 b) Mol. Wt./5 c) Mol. Wt./3 d) Mol. Wt./6 The answer is ‘b’. please explain.?.
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