A solution is made using 109.3 g of ethanol (MM = 46.07 g/mol) and 120.0 g of water (MM = 18.02 g/mol). What is the molality of the ethanol in the solution?

Q: The density of an aqueous solution containing 15.0 percent ethanol (C₂H5OH) by mass is 0.979. Round…

A: Mass percent = 15.0 % That is 15.0 g of ethanol is present in 100 g of the solution. That is Mass of…

Q: Part 1: 12.4 µg of K2CrO4 are dissolved in 3.45 g of water. What is the molality of the resulting…

A:

Q: 86. Calculate the freezing point and boiling point of a solution containing 12.55 g of ethylene…

A: Answer:Properties that depend on the number of solute particles present in the solution are called…

Q: A NaOH solution has a molality of 13.3 mol/kg. Find the mole fraction of NaOH in the solution. The…

A: The molality of the solution is = 13.3 mol/kg The molar mass of NaOH is 40.00 g The molar mass of…

Q: The density of a 2.45 M aqueous solution of methanol (CH3OH) is 0.976g/mL. The molarity is 2.45 M…

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Q: An ethylene glycol solution contains 27.8 g of ethylene glycol (CH,O2) in 79.2 mL of water (density…

A: Answer is explained below. Given that, mass of ethylene glycol = 27.8 g, volume of water = 79.2 ml…

Q: You and your lab partner decide to make a solution by dissolving 12.25 g of H2SO4 in      100.0 mL…

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Q: the density of acitonitrile is 0.786g/ml and the density of methanol is 0.791g/ml. a solution is…

A: Density of a solution is related to it mass (g) and volume (ml)density = mass/volume

Q: In aqueous solution of nickel(II) bromide has a concentration of 0.134 molal. The percent by mass of…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 27. An ethylene glycol solution contains 28.3 g of ethylene glycol, C2H602 in 97.2 mL of water.…

A: This problem is based on Solutions chapter where it is of the subtopic Colligative Properties of…

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

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

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

Q: 2. If 11.2 g of naphthalene, C1oHs (molar mass: 128 g/mol), is dissolved in 105.4 g of chloroform,…

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Q: 95.1

A: Dear student I have given answer to your question in the image format.

Q: 5. Consider two solutions: (1) 10 g of glucose (C6H1206) in 1 L of water and (2) 10 g of sucrose…

A: Boiling point is defined as the temperature at which a liquid starts boiling and becomes…

Q: What is the freezing point of a solution of toluene, C7Hg, in 660 g of napthalene if the solution…

A: When a non-volatile solute is added to a solvent, the freezing point of a solvent decreases and this…

Q: An ethanol (C2H5OH) solution contains 51.4 mL of C2H5OH and 110.8 mL of H2O at 20°C. Calculate the…

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Q: What is the molality of a solution prepared by dissolving 18.5 g of sodium nitrate (MW=84.99g/mol)…

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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…

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

Q: Calculate the molality of a solution formed by adding 9.60 g NH,Cl to 13.0 g of water. molality:…

A: We know that, molality = moles solute / kg solvent

Q: Calculate the molality of the following aqueous solutions

A: A)    2.90 Molar solution means  there are 2.90 moles of  NaCl salt in 1 Liter.  Molecular weight of…

Q: The boiling point of pure ethanol is 78.4 °C. A solution is made using 100.0 g of ethanol (the…

A: Molality of solution is determined as follows,

Q: A student dissolves 5.7 g of biphenyl (C₁₂H₁0) in 475. ml. of a solvent with a density of 0.88…

A: Given :  Mass of biphenyl = 5.25 g  Volume of solvent = 475. ml  Density of solvent = 0.88 gm/ml

Q: An aqueous antifreeze solution is 20.4 % ethylene glycol (C2H6O2) by mass. Find the molality of the…

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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.

Q: What is the molality of a solution when 8.57 g of ethanol (C2H60 46.07 g/ mol) is dissolved in 274.6…

A: Given values are, Mass of solute (ethanol) = 8.57 g Molar mass of ethanol= 46.07 g/mol Volume of…

Q: Your pure water boils at 100.00 C. You add some sugar into it and now it boils at 101.20C. What is…

A: Given,  Boiling point of pure water, Tb° = 100.00 °C  Boiling point of solution, Tb = 101.20 °C  Kb…

Q: A solution is prepared by dissolving 8.62g of KCL (MM = 74.55 g/mol) into 265g of water. The density…

A: