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Which one of the following statement is not true?
- a)The conjugate base of H2PO4- is HPO42 .
- b)pH + pOH = 14 for all aqueous solutions.
- c)the pH of 1 x 10-8 MHC1 is 8
- d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which one of the following statement is not true?a)The conjugate base ...
Yes, because HCl is a strong acid with whatever amount you dilute it ....its pH at room temperature will indeed be less than 7 for sure.
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Community Answer
Which one of the following statement is not true?a)The conjugate base ...
Explanation:
The statement that is not true is option C, which states that the pH of 1 x 10^-8 M HCl is 8.
Reasoning:
To understand why this statement is not true, let's first review the concept of pH and how it is calculated.
- The pH scale is a logarithmic scale that measures the acidity or alkalinity of a solution. It ranges from 0 to 14, where pH 7 is considered neutral.
- pH is calculated using the negative logarithm (base 10) of the concentration of hydrogen ions (H+) in a solution.
- The formula for pH is: pH = -log[H+]
Now let's analyze option C, which states that the pH of 1 x 10^-8 M HCl is 8.
Analysis:
- HCl is a strong acid, meaning it completely dissociates in water to produce hydrogen ions (H+).
- In this case, the concentration of H+ is 1 x 10^-8 M.
- To calculate the pH, we take the negative logarithm of the concentration of H+:
pH = -log(1 x 10^-8)
Using logarithmic properties, we can simplify the calculation as follows:
pH = -log(1) - log(10^-8)
pH = 0 - (-8)
pH = 8
Conclusion:
Based on the calculation, the pH of 1 x 10^-8 M HCl is indeed 8, which contradicts option C in the question. Therefore, the statement that is not true is option C.
The statement that is not true is option C, which states that the pH of 1 x 10^-8 M HCl is 8.
Reasoning:
To understand why this statement is not true, let's first review the concept of pH and how it is calculated.
- The pH scale is a logarithmic scale that measures the acidity or alkalinity of a solution. It ranges from 0 to 14, where pH 7 is considered neutral.
- pH is calculated using the negative logarithm (base 10) of the concentration of hydrogen ions (H+) in a solution.
- The formula for pH is: pH = -log[H+]
Now let's analyze option C, which states that the pH of 1 x 10^-8 M HCl is 8.
Analysis:
- HCl is a strong acid, meaning it completely dissociates in water to produce hydrogen ions (H+).
- In this case, the concentration of H+ is 1 x 10^-8 M.
- To calculate the pH, we take the negative logarithm of the concentration of H+:
pH = -log(1 x 10^-8)
Using logarithmic properties, we can simplify the calculation as follows:
pH = -log(1) - log(10^-8)
pH = 0 - (-8)
pH = 8
Conclusion:
Based on the calculation, the pH of 1 x 10^-8 M HCl is indeed 8, which contradicts option C in the question. Therefore, the statement that is not true is option C.
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Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer?
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Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer?.
Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statement is not true?a)The conjugate base of H2PO4-is HPO42 .b)pH + pOH = 14 for all aqueous solutions.c)the pH of 1 x 10-8MHC1 is 8d)96,500 coulombs of electricity when passed through a CuS04 solution deposits 1 gram equivalent of copper at the Cathode.Correct answer is option 'C'. Can you explain this answer?.
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