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A molal solution is one that contains one mole of solute in
- a)1000 g of solvent
- b)1.0 L of solvent
- c)1.0 L of solution
- d)22.4 L of solution
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A molal solution is one that contains one mole of solute ina)1000 g of...
A molal solution is one that has a molality (m)=1 (i.e) it contains 1 mole (gram molecular mass) of the solute is 1000 g (1 kg) of the solvent .
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Most Upvoted Answer
A molal solution is one that contains one mole of solute ina)1000 g of...
A molal solution is one that contains one mole of solute dissolved in a specified amount of solvent. The correct option is 'A', which states that a molal solution contains one mole of solute in 1000 g of solvent.
Here's an explanation of why option 'A' is the correct answer:
Molal Solution:
A molal solution is a solution in which the concentration of solute is expressed in terms of moles of solute per kilogram of solvent. It is denoted by the symbol 'm'. The molality of a solution remains constant even with changes in temperature and pressure.
Explanation of the Answer:
1. Molality:
Molality (m) is defined as the number of moles of solute (n) divided by the mass of the solvent (m) in kilograms. It is expressed in mol/kg. Mathematically, it can be represented as:
molality (m) = moles of solute (n) / mass of solvent (m)
2. One mole of solute:
The question states that the molal solution contains one mole of solute. This means that the number of moles of solute (n) is 1.
3. 1000 g of solvent:
Option 'A' states that the solution contains 1000 g of solvent. To calculate the molality, we need to convert this mass into kilograms. As there are 1000 grams in a kilogram, the mass of the solvent (m) is 1000 g / 1000 g/kg = 1 kg.
4. Calculating Molality:
Using the formula for molality, we can calculate the molality (m) of the solution:
molality (m) = moles of solute (n) / mass of solvent (m)
molality (m) = 1 mole / 1 kg
molality (m) = 1 mol/kg
5. Conclusion:
Therefore, the correct answer is option 'A', which states that a molal solution contains one mole of solute in 1000 g of solvent. This is consistent with the definition and calculation of molality.
In summary, a molal solution is one that contains one mole of solute dissolved in a specified amount of solvent. In this case, the molal solution contains one mole of solute in 1000 g of solvent, which is expressed as 1 mol/kg or 1 molal.
Here's an explanation of why option 'A' is the correct answer:
Molal Solution:
A molal solution is a solution in which the concentration of solute is expressed in terms of moles of solute per kilogram of solvent. It is denoted by the symbol 'm'. The molality of a solution remains constant even with changes in temperature and pressure.
Explanation of the Answer:
1. Molality:
Molality (m) is defined as the number of moles of solute (n) divided by the mass of the solvent (m) in kilograms. It is expressed in mol/kg. Mathematically, it can be represented as:
molality (m) = moles of solute (n) / mass of solvent (m)
2. One mole of solute:
The question states that the molal solution contains one mole of solute. This means that the number of moles of solute (n) is 1.
3. 1000 g of solvent:
Option 'A' states that the solution contains 1000 g of solvent. To calculate the molality, we need to convert this mass into kilograms. As there are 1000 grams in a kilogram, the mass of the solvent (m) is 1000 g / 1000 g/kg = 1 kg.
4. Calculating Molality:
Using the formula for molality, we can calculate the molality (m) of the solution:
molality (m) = moles of solute (n) / mass of solvent (m)
molality (m) = 1 mole / 1 kg
molality (m) = 1 mol/kg
5. Conclusion:
Therefore, the correct answer is option 'A', which states that a molal solution contains one mole of solute in 1000 g of solvent. This is consistent with the definition and calculation of molality.
In summary, a molal solution is one that contains one mole of solute dissolved in a specified amount of solvent. In this case, the molal solution contains one mole of solute in 1000 g of solvent, which is expressed as 1 mol/kg or 1 molal.
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A molal solution is one that contains one mole of solute ina)1000 g of...
Explanation:
A molal solution is a solution that contains one mole of solute dissolved in 1000 grams (1 kilogram) of solvent. The term "molal" refers to the concentration of the solute in the solvent. It is different from molar concentration, which is the amount of solute dissolved in a given volume of solution.
Understanding Molality:
Molality (m) is defined as the number of moles of solute per kilogram of solvent. It is expressed in units of moles per kilogram (mol/kg). Molality is a useful way to express concentration, especially in situations where temperature changes can affect the volume of the solution.
Why Option 'A' is Correct:
Option 'A' states that a molal solution contains one mole of solute in 1000 grams of solvent. This is the correct definition of a molal solution. By definition, a molal solution has a molality of 1 mol/kg, which means that there is one mole of solute dissolved in one kilogram of solvent.
Explanation of Other Options:
- Option 'B' states that a molal solution contains one mole of solute in 1.0 liter of solvent. This is incorrect because a liter is a measure of volume, not mass. Molality is based on the mass of the solvent, not its volume.
- Option 'C' states that a molal solution contains one mole of solute in 1.0 liter of solution. This is incorrect because molality is a measure of the concentration of the solute in the solvent only, not in the entire solution.
- Option 'D' states that a molal solution contains one mole of solute in 22.4 liters of solution. This is incorrect because the volume of the solution is not relevant to molality. Molality is based on the mass of the solvent, not the volume of the solution.
Therefore, the correct answer is option 'A' - a molal solution contains one mole of solute in 1000 grams (1 kilogram) of solvent.
A molal solution is a solution that contains one mole of solute dissolved in 1000 grams (1 kilogram) of solvent. The term "molal" refers to the concentration of the solute in the solvent. It is different from molar concentration, which is the amount of solute dissolved in a given volume of solution.
Understanding Molality:
Molality (m) is defined as the number of moles of solute per kilogram of solvent. It is expressed in units of moles per kilogram (mol/kg). Molality is a useful way to express concentration, especially in situations where temperature changes can affect the volume of the solution.
Why Option 'A' is Correct:
Option 'A' states that a molal solution contains one mole of solute in 1000 grams of solvent. This is the correct definition of a molal solution. By definition, a molal solution has a molality of 1 mol/kg, which means that there is one mole of solute dissolved in one kilogram of solvent.
Explanation of Other Options:
- Option 'B' states that a molal solution contains one mole of solute in 1.0 liter of solvent. This is incorrect because a liter is a measure of volume, not mass. Molality is based on the mass of the solvent, not its volume.
- Option 'C' states that a molal solution contains one mole of solute in 1.0 liter of solution. This is incorrect because molality is a measure of the concentration of the solute in the solvent only, not in the entire solution.
- Option 'D' states that a molal solution contains one mole of solute in 22.4 liters of solution. This is incorrect because the volume of the solution is not relevant to molality. Molality is based on the mass of the solvent, not the volume of the solution.
Therefore, the correct answer is option 'A' - a molal solution contains one mole of solute in 1000 grams (1 kilogram) of solvent.
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