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Which of the following two statement(s) is/are true?
Statement A : Mole is quite often known as chemist's dozen.
Statement B : The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
- a)Neither Statement A nor Statement B.
- b)Statement B
- c)Statement A
- d)Both the statements - A and B
Correct answer is option 'D'. Can you explain this answer?
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Which of the following two statement(s) is/are true?Statement A :Mole ...
Both the statements are correct. A mole is also known as a chemist's dozen. A mole, just like a dozen, is a common counting unit. A counting unit is a convenient number that makes it easier to count objects. The mass of one-twelfth of the mass of one atom of Carbon is taken as 1 u.
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Which of the following two statement(s) is/are true?Statement A :Mole ...
Statement A: Mole is quite often known as chemists dozen.
Statement B: The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
The correct answer is option D, both the statements A and B are true.
Explanation:
1. Statement A: Mole is quite often known as chemists dozen.
- A mole is a unit of measurement in chemistry that represents a large number of particles, such as atoms, molecules, or ions. It is similar to how a dozen represents 12 items.
- Chemists often refer to a mole as a "chemists dozen" because it is a convenient way to express the large quantity of particles present in a sample.
2. Statement B: The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
- The atomic mass unit (u) is a unit of measurement used to express the mass of atoms or molecules. It is defined as one-twelfth (1/12) of the mass of one atom of Carbon-12.
- By defining the mass of Carbon-12 as 12 atomic mass units (u), it allows for a consistent comparison of the masses of different atoms or molecules.
By taking the mass of one atom of Carbon-12 as a reference point, scientists can determine the relative masses of other atoms or molecules. For example, if an atom has a mass of 24 u, it means that it is twice as heavy as one atom of Carbon-12.
In summary, both Statement A and Statement B are true. The mole is often referred to as a chemists dozen because it represents a large quantity of particles, similar to how a dozen represents 12 items. The atomic mass unit (u) is based on the mass of one atom of Carbon-12, which is defined as 12 u.
Statement B: The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
The correct answer is option D, both the statements A and B are true.
Explanation:
1. Statement A: Mole is quite often known as chemists dozen.
- A mole is a unit of measurement in chemistry that represents a large number of particles, such as atoms, molecules, or ions. It is similar to how a dozen represents 12 items.
- Chemists often refer to a mole as a "chemists dozen" because it is a convenient way to express the large quantity of particles present in a sample.
2. Statement B: The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
- The atomic mass unit (u) is a unit of measurement used to express the mass of atoms or molecules. It is defined as one-twelfth (1/12) of the mass of one atom of Carbon-12.
- By defining the mass of Carbon-12 as 12 atomic mass units (u), it allows for a consistent comparison of the masses of different atoms or molecules.
By taking the mass of one atom of Carbon-12 as a reference point, scientists can determine the relative masses of other atoms or molecules. For example, if an atom has a mass of 24 u, it means that it is twice as heavy as one atom of Carbon-12.
In summary, both Statement A and Statement B are true. The mole is often referred to as a chemists dozen because it represents a large quantity of particles, similar to how a dozen represents 12 items. The atomic mass unit (u) is based on the mass of one atom of Carbon-12, which is defined as 12 u.
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Which of the following two statement(s) is/are true?Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.a)Neither Statement A nor Statement B.b)Statement Bc)Statement Ad)Both the statements - A and BCorrect answer is option 'D'. Can you explain this answer?
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Which of the following two statement(s) is/are true?Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.a)Neither Statement A nor Statement B.b)Statement Bc)Statement Ad)Both the statements - A and BCorrect answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Which of the following two statement(s) is/are true?Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.a)Neither Statement A nor Statement B.b)Statement Bc)Statement Ad)Both the statements - A and BCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following two statement(s) is/are true?Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.a)Neither Statement A nor Statement B.b)Statement Bc)Statement Ad)Both the statements - A and BCorrect answer is option 'D'. Can you explain this answer?.
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