SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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0.3m
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0.3M
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0.03m
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0.03M
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Detailed explanation-1: -Lets say you dissolve 0.75mol of a solute into 2.50L of water. Since the density of water is 1.00g/mL and one liter of water is 1000mL, the mass of a liter of water is 1.00kg. So 2.50L of water has a mass of 2.50kg. The molality, m, of this solution would by 0.75mol/2.50kg = 0.3mol/kg = 0.3 m .
Detailed explanation-2: -Example #3: What is the molality when 0.750 mol is dissolved in 2.50 L of solvent? The answer is 0.300 m.
Detailed explanation-3: -Molarity = Moles Solute / Liter of Solution. Molality: The molality of a solution is calculated by taking the moles of solute and dividing by the kilograms of solvent.
Detailed explanation-4: -67molL−1. Was this answer helpful?
Detailed explanation-5: -Divide the amount of the solute (in moles) by the mass of the solvent (in grams). Alternatively, if the amount of the solute is unknown, multiply the mass of the solvent (in g) and its molar mass (in g/mol). Then divide the mass of the solute (in g) by the result from Step 2. That’s it! More items •30-Nov-2022