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If 0.5 moles of NaCl is dissolved in 1 liter of water, what is the molality of t
If 0.5 moles of NaCl is dissolved in 1 liter of water, what is the molality of the solution? (2022)
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If 0.5 moles of NaCl is dissolved in 1 liter of water, what is the molality of the solution? (2022)
0.5 m
1 m
2 m
0.25 m
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Molality (m) = moles of solute / kg of solvent. Assuming 1 L of water = 1 kg, molality = 0.5 moles / 1 kg = 0.5 m.
Questions & Step-by-step Solutions
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Q: If 0.5 moles of NaCl is dissolved in 1 liter of water, what is the molality of the solution? (2022)
Solution:
Molality (m) = moles of solute / kg of solvent. Assuming 1 L of water = 1 kg, molality = 0.5 moles / 1 kg = 0.5 m.
Steps: 6
Show Steps
Step 1: Identify the amount of solute (NaCl) in moles. In this case, it is 0.5 moles.
Step 2: Identify the amount of solvent (water) in liters. Here, it is 1 liter.
Step 3: Convert the volume of water from liters to kilograms. Since 1 liter of water is approximately equal to 1 kilogram, we have 1 kg of water.
Step 4: Use the formula for molality, which is molality (m) = moles of solute / kg of solvent.
Step 5: Substitute the values into the formula: molality = 0.5 moles / 1 kg.
Step 6: Calculate the molality: 0.5 moles / 1 kg = 0.5 m.
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