Multiple Choice
What is the molality of a solution prepared by dissolving 13.2 g of MgCl_2 in 175.0 g of H_2O?
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14. Solutions
Molality
Back14. Solutions
Molality
- Multiple ChoiceWhat is the molality of a solution prepared by dissolving 12.5 g of KNO3 in 75.0 g of H2O?20views
- Multiple ChoiceWhat is the molality of lithium ions in a 0.302 m solution of Li\(_3\)PO\(_4\), assuming the compound dissociates completely?8views
- Multiple ChoiceWhy is molality often preferred over molarity for calculations involving temperature changes?30views
- Multiple ChoiceA solution is prepared by dissolving 9.8 g of phosphoric acid (H3PO4) in 250 g of water. What is the molality of phosphoric acid in the solution?18views
- Multiple ChoiceWhich of the following represents the correct units for molality?21views
- Multiple ChoiceWhich of the following best describes how molality differs from molarity?14views
- Multiple ChoiceWhat is the molality of a solution that contains 75.3 g of KCl dissolved in 95.0 g of water? (Molar mass of KCl = 74.55 g/mol)18views
- Multiple Choice
A solution is prepared by dissolving 43.0 g potassium chlorate, KClO3, in enough water to make 100.0 mL of solution. If the density of the solution is 1.760 g/mL, what is the molality of KClO3 in the solution?
1850views12rank - Multiple Choice
The density of a 15.7 M methanol (CH3OH) solution is 0.858 g/mL. If H2O is the solvent, what is the molality of the solution?
2261views9rank4comments - Multiple Choice
What is the ionic molality of sodium ions in a solution of 25.7 g NaNO3 dissolved in enough water to make a 150.0 mL of solution? Density of the solution is 1.02 g/mL.
1366views9rank3comments - Multiple ChoiceWhat is the molarity of a solution prepared by dissolving 5.00 g of NaCl in 500.0 mL of water?855views
- Multiple ChoiceCalculate the molality of an aqueous solution that is 48.0% by mass Ca(NO3)2.789views
- Open Question
What mass (in g) of nh3 must be dissolved in 475 g of methanol to make a 0.250 m solution?
932views - Open Question
What is the molar concentration of Na+ ions in 0.0250 m solutions of the following sodium salts in water?
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