Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at −−14.5 degrees Celsius? The freezing point for pure water is 0.0 degrees Celsius and Kf is equal to 1.86 ∘C kg mol -1.

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Q: Calculate the freezing point of a solution made by dissolving 1.00 mole of NaCl in 1000. g of H2O.

A: We will use formula of ∆Tf. ∆Tf=Tf°-Tf

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Q: If 0.300 mol of a nonvolatile nonelectrolyte are dissolved in 3.50 mol of water, what is the vapor…

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Q: Calculate the boiling point of solution when 10 grams of glucose (C6H12O6) is dissolved in 100 g of…

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Q: An aqueous solution containing 36.8 g of an unknown molecular (non-electrolyte) compound in 143.2 g…

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Q: when 5.0g of an unknown substance is dissolved in 100.0g of water, the freezing point of the…

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Q: The freezing point of a 0.21m aqueous solution of H2SO4 is -0.796oC. i = 2.04 b. Is the solution…

A: Given, Molality (m) = 0.21 m □Tf = 0.796 °c Kf = 1.86 °c/m □Tf = i×Kf ×m i = 0.796/0.21×1.86 =2.01

Q: 3. A 100. mL aqueous solution prepared by dissolving 25.0 g of a non-electrolyte solute had a…

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Q: If we add 175 g of ethylene glycol, C2H6O2, per 1000. g of water to a car radiator, what will be the…

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Q: At what temperature does a 2.00 m CH3OH(aq) solution freeze at?

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Q: What is the freezing point of a solution of water if, 25.0 grams of acetone (C3H6O) is mixed with…

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Q: Calculate the molal concentration, m of a solution that contains 12g of Magnesium hydroxide, mg…

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Q: 6. The normal freezing point of ethanol is -117.30 °C. How many grams of electrolyte K2SO4 (molar…

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Q: What is the effect on vapor pressure of a solution with particularly strong solute–solvent…

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Q: What is the freezing point (in degrees Celcius) of 3.79 kg of water if it contains 192.8 g of…

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Q: Calculate the freezing point of a solution containing 109 gg FeCl3FeCl3 in 171 gg water.

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Q: Ammonium carbonate is a strong electrolyte and it disocciate into two NH4+ and one CO32- . If the…

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Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

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Q: A solution consisting of 0.240 mol of methylbenzene, C6H5CH3, in 252 g of nitrobenzene, C6H5NO2,…

A: First, calculate the molality of the solution: Molality = Moles of methylbenzene / Mass of…

Q: if

A:

Q: he freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kbenzene) = -5.12 °C/m a laboratory…

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Q: What mass of naphthalene must be dissolved in 2.20 ×102 g of benzene to give a solution with a…

A: The required relationship is given below.

Q: A chemist is studying small organic compounds for theirpotential use as an antifreeze. When 0.243 g…

A: a) To solve for the molality of the compound, ∆Tf = Kfmm =∆TfKf=0°C- (-0.201°C)1.86°C/m=0.108 m

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A:

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A: The molar mass of sucrose from the above given data is calculated as follows:

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A:

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.