A particular unknown solid depresses the freezing point of PDB (K; = 7.1°C/molal) by 3.5°C. If you dissolve the same solid in H20 (K; = 1.86°C/molal) to the same final molality as you had it in the PDB, what would the change in freezing point be?

Q: A ‍aluminum sulfide solution at 23∘C has an osmotic pressure of 19 atm and a density of 1.218 g/mL.…

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Q: How many grams of ethylene glycol (molar mass = 62.07 g/mol) must be added to 1500.0 g of water to…

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Q: Ethylene glycol [CH2(OH)CH2(OH)] is a common automobile antifreeze. Calculate the freezing point and…

A: Given: The mass of ethylene glycol in the solution = 223 g The mass of water = 1085 g Kb for water =…

Q: he boiling point of diethyl ether, CH3CH2OCH2CH3, is 34.50°C at 1 atmosphere. A nonvolatile,…

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Q: The molarity of commercial HCl in water is 6.0 M and its density is 1.10g/cm3.   What is the mass…

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

Q: When 14.0 g of non-electrolyte were dissolved in 420 g of water (K 1.86°C/m), the resulting solution…

A: Freezing point: It is the temperature at which any liquid start to freeze. Depression in freezing…

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Q: What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting solution freezes to…

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Q: Vodka is 37 % by mass ethanol (C2H5OH) and has a density of 0.92 g/mL. What is the molarity (of…

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Q: The freezing points and boiling points of the solution which contains 22.1g NaCl in 129 mL of water…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: A solution contains 450.0 g of sucrose, Cj„H„O1, a nonelectrolyte, dissolved in 250.0 g of water.…

A: Given, The amount of sucrose (C12H22O11) = 450.0 g The amount of water = 250.0 g The molar mass of…

Q: Calculate the mass of ethyleneglycol 1C2H6O22 that must be added to 1.00 kg of ethanol1C2H5OH2 to…

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Q: The density of a solution having 98 grams of Sulphuric acid(H2SO4) in 1 liter solution is 1.098…

A: Molarity of the solution is 84.74

Q: Toluene (CoH5CH3) has a vapor pressure of 0.038 atm, while benzene (CoH6) has a vapor pressure of…

A: Vapour pressure of toluene = 0.038 atm Vapour pressure of benzene = 0.13 atm Number of moles of…

Q: The molality of ethanol, CH3CH2OH, in an aqueous solution is 8.95 mol/kg. What is the mole fraction…

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Q: 0.265 molal aqueous MgSO4 solution has a freezing point of −0.61°C. What is the percent dissociation…

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Q: An aqueous solution is 10.% glucose by mass (d=1.039 g/mL at 20°C). Calculate its freezing point,…

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Q: The molal freezing point constant for water is 1.86 degreesC/m. At what temperature will a mixture…

A: The freezing-point depression is given by

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Q: The mole fraction of ethanol in water is 0.3 calculate the molality os solution and the mass percent…

A: mole fraction of ethanol=0.3 therefore mole fraction of water=1-0.3=0.7

Q: Consider two ionic solids, both composed of singly chargedions, that have different lattice…

A: Lattice Energy is defined as the energy required to break the crystal into its constituent particles…

Q: In a laboratory experiment, the freezing point of an aqueous solu- tion of glucose is found to be…

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Q: What mass of ethylene glycol, C2H6O2, in grams must be added to 1kg of water for a boiling point of…

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Q: he common laboratory solvent chloroform is often used to purify substances dissolved in it. The…

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Q: What is the boiling point of a solution containing 171 g of sucrose (non-electrolyte) in 300.0 g of…

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Q: 1. A student determines the molar mass of acetone, CH.COHS, by the method used in this experiment.…

A: Mass of acetone = 10.5 gMass of solution = 86.4 g

Q: A solution contains 92.2g of methanol, CH3OH, dissolved in sufficient water to give a  mass of…

A: The molality of a solution is calculated by the formula: Molality m=mol of solutemass of solvent kg

Q: A solution made by dissolving urea, (NH2)CO (the product of protein metabolism in mammals), in…

A: The formula for freezing point  ΔTfΔTf=Kf ×CmTf (pure solvent) - Tf (solution)  = Kf ×Cm Kf  = molal…

Q: An aqueous potassium chloride, KCl, solution is made by dissolving 0.305 mol KCl in 575.0 g of…

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Q: What molality of NaCl is required to increase the boiling point of 500 g of water to 105°C? (K, is…

A: Given: The boiling point of the solution = 105°C Mass of water = 500 g Standard data: Kb for…

Q: If a 1-molal solution of NaCl in water shows a freezing-point depression of 3.9˚C, what is the…

A: The relationship between depression in freezing point and molality is  ∆Tf = i × Kf × m ∆Tf =…

Q: 10.Pure ethanol (C2H5OH) typically freezes at -114.6 °C, with a Kf value of -1.99 °C/m. If 50.00 g…

A: Pure ethanol freezes at -114.5 °c 50.00 g of Ca(NO3)2 is added in 700 g of ethanol. Freezing point…

Q: A water solution containing an unknown quantity of a nonelectrolyte solute has a freezing point of…

A: molal depression in freezing point    ∆Tf = Kf x m(To - Ts ) = Kf   x  m where  Ts = freezing…

Q: A solution is made up by dissolving 15.0 g MgSO4· 7H2O in 140.0 g of water. What is the molality of…

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Q: Polyvinyl alcohol is a water soluble polymer with an average molar mass of 28,000. You dissolve…

A: Osmotic Pressure (π) = 1095.69 Bar

Q: Aniline (C6H7N) is an organic solvent with a freezing point of -6.0 °C. What is the freezing point,…

A: According to Raoult's law, the depression in the freezing point of an ideal solution of a…

Q: A 1.10 g sample of an unknown compound reduces the freezing point of 75.22 g benzene from 5.53 to…

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Q: The molal concentration of a solution made by dissolving 3.5 g of CaCl2 (110.98 g/mol) in 353 g of…

A: Given :- mass of CaCl2 = 3.5 g  Mass of water = 353 g  To calculate :- molality of molal…

Q: The freezing point of a 0.01 m aqueous solution of a nonvolatile electrolyte is -0.0720C. What is…

A: The freezing point, Tf , of 0.01 m solution is -0.072o C. As the solution is aqueous, that is the…

Q: solution is prepared by dissolving in 3.00 g of naphthalene ( C10H8 ) in 20.0 g of  benzene ( C6H6).…

A: Freezing point depression and boiling point elevation property of solution are colligative property…

Q: The normal boiling point of a certain liquid X is 121.00 °C, but when 0.12 kg of benzamide (C,H,NO)…

A: When a solute is added to a solvent, the boiling point of the solvent increases. The boiling point…

Q: A 10.00% by mass solution of ethanol (C2H5OH), in water has a density of 0.9831 g/mL at 15 celsius…

A: We have Molarity = Moles of solute/Volume of solution (L) We know that, moles= mass/molar mass And…

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.