A solution contains 6.75 x 10-2 g of a compound in 8.35 g of ethanol. The molality of the solution is 3.90 x 10- . Calculate the molecular weight of the compound. Molecular weight = amu

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A: Given information,    Freezing point = –2.1°C    Value of Kf = 1.86°C/m for water

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A: The dilute solutions have the physical properties based on number of particles called colligative…

Q: When a 5.64 g sample of a non-electrolyte was dissolved in 40.0 g of water, the freezing point of…

A: Molality of the solution can be calculated as follows:

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A: Since moles = mass / molecular weight hence moles of compound = 6.45 X 10-2 / molecular weight of…

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A:

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A:

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Q: Calculate the molality of a solution formed by adding 3.80 g NH4Cl to 13.7 g of water.

A: Molality of solution= 5.18 m

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A:

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A:

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

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Q: Calculate the molality of a solution

A: Molality of solution is the ratio of number of moles of solute to the mass of solvent in kilogram.

Q: A solution was prepared by dissolving 12.0 g of glucose (180 g/mol) in 150. mL solution. What is the…

A:

Q: What is the molality of a solution

A: Molality = number of moles of solute/mass of solvent in kilogram  Number of moles = mass/molar mass

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A: Number of moles of glucose (solute) is calculated as follows,

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A: Molality is defined as number of moles of solute present in 1 kg of solvent.

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A: Given :  Mass percentage of ethanol = 15.0 ℅  Density of solution = 0.979 g/ml

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A: Given Molarity = 3.539 M Density = 1.15 g/ml

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Q: the

A:

Q: What is the molality of a 4.90M NANO3 solution. The density of the solution is 1.22 g/mL Molar mass…

A: Given : molarity of NaNO3 = 4.90 M And density of solution = 1.22 g/mL Assuming 1 L of solution i.e…

Q: What is the molar concentration of the solution? concentration: ----m   How many moles of solute…

A:

Q: A solution of KCl in water has Xkcl= .0700. What is the molality?

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Q: Calculate the molality of a solution formed by adding 3.159 g of methanol (CH3OH) to 100.00 mL of…

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: 1. Find the mass percent of CaCl2 (110.98 g/mol) in a solution whose molarity is 1.45 M and whose…

A: given that,Molarity = 1.45 M = 1.45 mol/ 1L density = 1.12 g/mLvolume of the solution = 1L = 1000mL…

Q: Ethyl propanoate is an organic molecule that smells like pineapple and has a molar mass of 102.132…

A: The molality of a solution is the number of moles of solute dissolved per kg of the solvent.

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Q: Calculate the molality of a solution formed by adding 2.10 g NH4Cl  to 13.8g of water.

A:

Q: An aqueous solution of 1.00 M ammonia (NH3) has a density of 0.900 g/mL. What is its concentration…

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Q: If the freezing point of the solution was observed to be -8.6 °C, and the normal freezing point of…

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Q: A bottle of wine contains 12.5% ethanol by volume. The density of ethanol (C₂H5OH) is 0.789 g/cm³.…

A: The volume percent of the ethanol is 12.5%.The density of ethanol is .The volume of the solution is…