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A student determined the molar mass of an unknown non-electrolyte compound by measuring the freezing point depression of an aqueous solution of the compound.
Mass of empty test tube: 35.223
Mass of test tube and compound: 36.837
Mass of test tube compound and water: 56.984
Freezing point of distilled water: 0.05 °C
Freezing point of solution: -1.61 °C
The molality of the solution is Blank 1_________ m (3 dec places).
The molar mass of the unknown is _________ g/m (0 dec places.
A sample containing 0.187 g Cl- is dissolved in 50.0 mL water.How many moles of Cl- ion are in the solution?What is the molarity of Cl- ion in the solution.
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Write the balanced molecular equation, the total ionic equation, and the net ionic equation
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One beaker contains pure water, another contains salt water, and another contains sugar water. How can you tell the which beaker is Which?
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