A student wants to lower the freezing point of 100.0 mL of water. They add 5.00 grams of NaCl to the water. If the freezing point constant of water is 1.86∘C kg/mol . What is the molality of the solution? [ Select ] ["0.855 mol/kg", "0.278 mol/kg", "2.69 mol/kg", "0.0500 mol/kg"] What is the change in freezing point of the water? [ Select ] ["0.0032 deg C", "1.6 deg C", "3.0 deg C", "0.19 deg C"]

Q: A solution of acetic acid CH3COOH has a concentration of 0.143 M and a density of 1.00 g mL^- 1 What…

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Q: The density of a particular solvent is 5.15g/L with a volume of 3981cm^3. If you add 0.00518kg of…

A: Molality of a solution is defined as the number of moles of solute per kilogram of solvent. The SI…

Q: A compound contains 42.9% C, 2.4% H, 16.6% N, and 38.1% O by mass. The addition of 3.16 g of this…

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Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

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Q: 10 A 3.40-g sample of a mixture of naphthalene (C, H.) and pyrene (CH) is dissolved in 35.0 g…

A: Given: The mass of the mixture of naphthalene and pyrene = 3.40 g The mass of benzene (solvent) =…

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Q: 1) What is the molality of the solution with a boiling point elevation of 2.56 degrees Celsius? The…

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Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C?

A: given data : Kf of water = 1.86 °C/m  Freezing point of water = 0°C  ∆Tf = 0-(-2.00) = 2.00°C  Mass…

Q: 6.) Calculate the molality of the solution (m) Use the equation: Tf (solution) – Tf (solvent) = –i…

A: Molality = number of moles of solute ÷ mass of solvent in kg

Q: 1) A 200 g of non-dissociating solute is dissolved in 500 g of water. The freezing point of the…

A: Molar mass of Solute = 62 g/mol

Q: . At 30.0 °C, pure benzene has a vapor pressure of 121.8 mmHg. Dissolving 15.0 g of a non- volatile…

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Q: The normal freezing point of water is 0.00 ⁰C.  What is the freezing point of a solution containing…

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Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

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Q: What is the freezing and boiling point of an electrolyte solution containing 5.0 grams sodium…

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Q: When 1.504 g of a solute is dissolved in 5.012 g of solvent (benzene), the solution freezes at -7.05…

A: Given: Mass of solute = 1.504 g Mass of solvent (Benzene) =5.012 g Freezing point of the solution…

Q: Some ethylene glycol, HOCH2CH2OH, is added to your car’s cooling system along with 5 kg of water. If…

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Q: 4. A compound contains 42.9% C, 2.4% H, 16.6% N, and 38.1% O by mass. The addition of 3.16 g of this…

A:

Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

A: Since the depression in freezing point of any solution is given by  depression in freezing point = i…

Q: An aqueous solution containing 35.6 gg  of an unknown molecular (non-electrolyte) compound in 150.1…

A: Given, mass of the compound = 35.6 g mass of water = 150.1 g = 0.1501 kg Freezing point of the…

Q: Some ethylene glycol, HOCH2CH2OH, is added to your car’s cooling system along with 5 kg of water. If…

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Q: Calculating molality A student dissolves 9.7 g of biphenyl (C₁3H,) in 250 ml. of a solvent with a…

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Q: 1. A student determines the molar mass of methanol, CH3OH by the same method used in this…

A: Answer: This question is based on the colligative property of the solution. Colligative property of…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: An online study examined the lowering of freezing point when 0.222 g of an unknown molecular solute…

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Q: What volume of ethylene glycol (), a nonelectrolyte, must be added to 17.0 L water to produce an…

A: Let's apply the formula for Depression of freezing point of a solution- ΔT = Kf . m . i Where, ΔT =…

Q: Omotic Pressure is a technique used to find the length of a polymer using its Molar Mass. If a 32.25…

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Q: A 3.40-g sample of a mixture of naphthalene (C10H8) and pyrene (C16H10) is dissolved in 35.0 g…

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Q: What is the molality of NaCl in a solution that is 3.000 M , with a density of 1.070g mL^ - 1? Based…

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Q: What volume of ethylene glycol (), a nonelectrolyte, must be added to 18.0 L water to produce an…

A: Using colligative property, we will evaluate the calculate the boiling point of solution.

Q: A solution of 0.890 g of an organic compound in 100.0 g of benzene has a freezing point of 5.107°C.…

A: Freezing point of pure solvent = 5.500°C  Freezing point of solution = 5.107°C  ∆ Tf = Freezing…

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.