Class 9 Exam > Class 9 Questions > Molarity of the solution is_______.a)Number o...
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Molarity of the solution is_______.
- a)Number of grams of solute dissolved per kilogram of solvent
- b)The number of gram mole of the solute dissolved per ml. of the solution
- c)The number of moles of the solute dissolved per kilogram of the solvent
- d)The number of moles of solute dissolved per litre of the solution
Correct answer is option 'D'. Can you explain this answer?
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The correct answer is option 'D': The molarity of a solution is the number of moles of solute dissolved per litre of the solution. Let's understand why this is the correct answer in detail:
**Molarity of a solution:**
The molarity of a solution is a measure of the concentration of a solute in a solution. It is defined as the number of moles of solute dissolved per litre of the solution. The symbol used for molarity is M.
**Explanation of the options:**
Let's go through each option and see why option 'D' is the correct answer:
a) Number of grams of solute dissolved per kilogram of solvent:
This statement describes the concentration in terms of grams of solute per kilogram of solvent. It is actually referring to the unit "mass/mass percent". The unit for this concentration is % (mass/mass). Hence, this option is not the correct answer for the molarity of a solution.
b) The number of gram mole of the solute dissolved per ml. of the solution:
This statement describes the concentration in terms of gram moles of solute per milliliter of the solution. The unit for this concentration should be mol/mL. However, the molarity unit is mol/L (moles per litre), not mol/mL. Therefore, this option is also incorrect.
c) The number of moles of the solute dissolved per kilogram of the solvent:
This statement describes the concentration in terms of moles of solute per kilogram of solvent. Although it is similar to molarity, it does not specify the volume of the solution. Molarity specifically refers to the number of moles of solute per litre of the solution, not per kilogram of solvent.
**The correct answer:**
d) The number of moles of solute dissolved per litre of the solution:
This statement describes the concentration in terms of moles of solute per litre of the solution. This is the correct definition of molarity. The unit for molarity is mol/L or M. It is the most commonly used unit to express the concentration of a solute in a solution.
So, the correct answer is option 'D': The molarity of the solution is the number of moles of solute dissolved per litre of the solution.
**Molarity of a solution:**
The molarity of a solution is a measure of the concentration of a solute in a solution. It is defined as the number of moles of solute dissolved per litre of the solution. The symbol used for molarity is M.
**Explanation of the options:**
Let's go through each option and see why option 'D' is the correct answer:
a) Number of grams of solute dissolved per kilogram of solvent:
This statement describes the concentration in terms of grams of solute per kilogram of solvent. It is actually referring to the unit "mass/mass percent". The unit for this concentration is % (mass/mass). Hence, this option is not the correct answer for the molarity of a solution.
b) The number of gram mole of the solute dissolved per ml. of the solution:
This statement describes the concentration in terms of gram moles of solute per milliliter of the solution. The unit for this concentration should be mol/mL. However, the molarity unit is mol/L (moles per litre), not mol/mL. Therefore, this option is also incorrect.
c) The number of moles of the solute dissolved per kilogram of the solvent:
This statement describes the concentration in terms of moles of solute per kilogram of solvent. Although it is similar to molarity, it does not specify the volume of the solution. Molarity specifically refers to the number of moles of solute per litre of the solution, not per kilogram of solvent.
**The correct answer:**
d) The number of moles of solute dissolved per litre of the solution:
This statement describes the concentration in terms of moles of solute per litre of the solution. This is the correct definition of molarity. The unit for molarity is mol/L or M. It is the most commonly used unit to express the concentration of a solute in a solution.
So, the correct answer is option 'D': The molarity of the solution is the number of moles of solute dissolved per litre of the solution.
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Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect answer is option 'D'. Can you explain this answer?
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Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect 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 Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect 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 Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect answer is option 'D'. Can you explain this answer?.
Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect 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 Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect 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 Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect answer is option 'D'. Can you explain this answer?.
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Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Molarity of the solution is_______.a)Number of grams of solute dissolved per kilogram of solventb)The number of gram mole of the solute dissolved per ml. of the solutionc)The number of moles of the solute dissolved per kilogram of the solventd)The number of moles of solute dissolved per litre of the solutionCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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