e sure to answer all parts. solution contains 0.286 mol of NaCl dissolved in 5.46 mo) 1) What is the mole fraction of NaCl?

Q: ntifreeze solutions are aqueous solutions of ethylene glycol( d =1.12 g/ml) , In Connecticut, cars…

A: Density of ethylene glycol = 1.12 g mL-1 Depression in freezing point of water = ∆Tf = - 20 oF…

Q: At a certain temperature the vapor pressure of pure heptane (C,H16) is measured to be 416. torr.…

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Q: A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor…

A: Given data, Vapor pressure of pure hexane = 151 torr Vapor pressure of pure pentane = 425 torr Total…

Q: (CH),C) is measured to be 199. mmHg. Suppose a solution is prepared by mixing 86.9 g of At a certain…

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Q: The boiling point of an aqueous solution is 101.16 °C. What is the freezing point? Consult the table…

A: Given: Boiling point of aqueous solution is 101.16 oC. Boiling point of pure water is 100.0 oC. The…

Q: A nonvolatile solute is dissolved in benzene so that it has a mole fraction of 0.185. What is the…

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Q: Biphenyl, C,H,0 is a nonvolatile, nonionizing solute that is soluble in benzene, C,H. At 25 °C, the…

A: Vapour pressure of solution can be calculated by - Ps = Po × Xsolvent Here, Ps  is vapour pressure…

Q: A gas has a Henry’s law constant of 0.112 M>atm. What total volume of solution is needed to…

A: Given: Temperature = 25oC = 298K Pressure = 725 Torr = 725/760 amt = 0.954 atm Volume of gas = 1.65…

Q: The boiling point of an aqueous solution is 101.21 °C. What is the freezing point? Consult the table…

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Q: 4. How many grams of sodium hydroxide (NaOH) are needed to prepare a 0.700 molal solution using…

A: The given data contains, Number of moles of NaOH =0.700 moles Mass of water = 700 g

Q: What mass in grams of glucose (MM = 180.2 g/mol) would need to be dissolved in 100.0 g of water to…

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Q: Be sure to answer all parts. A solution contains 0.284 mol of NaCl dissolved in 7.75 mol of water.…

A: Given, Moles of NaCl = 0.284 mol Moles of water (H2O) = 7.75 mol (a) Mole fraction of NaCl = ? (b)…

Q: The normal freezing point of a certain liquid X is -0.40 °C, but when 5.42 g of ammonium sulfate…

A: Given: The normal freezing point of X = -0.40 oC When 5.42 g of ammonium sulfate [(NH4)2SO4] are…

Q: A solution is made by dissolving 0.511 mol of nonelectrolyte solute in 765 g of benzene. Calculate…

A: The given information is: Moles of nonelectrolyte = 0.511 mol Mass of benzene = 765 g Kf for benzene…

Q: What mass of carbon dioxide (in g) is dissolved in 1,248.9 mL of water at 25°C when the partial…

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Q: The boiling point of an aqueous solution is 101.68 °C. What is the freezing point? Consult the table…

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Q: calculate the boiling point of an aqueous solution in °C with 1.87 mol of calcium chloride per 4.16…

A: Data given: Number of moles of calcium chloride (CaCl2), n = 1.87 mol Mass of water, W = 4.16 kg…

Q: The freezing point of CCl4 is -22.92°C. Calculate the freezing point of the solution prepared by…

A: The molar mass of pyrazine is 80.09 g/mol. The number of moles of pyrazine is calculated below.

Q: A solution contains 20.5g of NaCl dissolved in sufficient water to give a total mass of 166.2g. What…

A: Given :-  Mass of NaCl = 20.5 g  Mass of solution = 166.2 g  To calculate :-  Molality of solution

Q: A certain liquid X has a normal boiling point of 126.40 °C and a boiling point elevation constant…

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Q: A certain substance X has a normal freezing point of - 5.2 °C and a molal freezing point depression…

A: Given: The freezing point of the pure substance, (T0f)=-5.20C The molal freezing point depression…

Q: What's the relationship between the boiling point and vapor pressure of a solution? a) There's an…

A: Vapour pressure is the measure of tendency of a material to change into vapour state, it increases…

Q: A solution is made by dissolving 13.75 mol of non-volatile solute into 34.15 mol of solvent. If the…

A: No.of mole of solute = 13.75 No.of mole of solvent = 34.15 Vapor pressure of pure solvent = 48.60…

Q: The normal freezing point of a certain liquid x is -6.20 °C, but when 36. g of iron(III) chloride…

A: We will calculate the molal freezing point depression constant Kf. Given: The normal freezing point…

Q: A 3.5 PERCENT SOLUTION (BY WEIGHT) OF NaOH IN H2O IS PREPARED. A SCIENTIST WANTS TO FIND OUT THE…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: 5. Five hundred grams of a 0.100 molal solution of contains how many grams of NaF?

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Q: A solution contains 0.100 mol of NaCl dissolved in 8.60 mol of water. (a) What is the mole fraction…

A: Mole fraction of a component is equal to the number of moles of a component divided by total number…

Q: Biphenyl, C,,H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C,H,. At 25 "C,…

A: Answer:- This question is answered by using the simple concept of calculation of vapour pressure of…

Q: Calculate the molarity of a 6.0 molal H,SO, solution. The molar mass of H,SO, is 98.077 g/mol and…

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Q: Determine the molality and molarity of a solution prepared by dissolving 75.0g Ba(NO3)2(s) in to…

A: GivenMass of Ba(NO3)2 = 75.0 gMass of water = 374 g

Q: Biphenyl, C,,H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C,H,. At 25 °C,…

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Q: 2) What specific feature of chemical substances do we refer to when we say "like dissolves like

A: " like dissolves like " term is used when we want to explain the salvation of the chemical…

Q: Based on the following  - mass of unkown: 3.525 g - mass of test tube: 30.874 g - voulme of…

A: The freezing point of solution is less than the freezing point of pure water as when a non-volatile…

Q: Be sure to answer all parts. A solution contains 0.570 mol of isopropanol (C3H7OH) dissolved in…

A: Mole fraction is given by the formula, mole fraction of A = XAXA+XB where XA is the mole fraction of…

Q: Biphenyl, C,,H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C,H,. At 25 °C,…

A:

Q: The boiling point of an aqueous solution is 102.46 degrees Celcius. What is the freezing point?…

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Q: Raoult's Law relates the vapor pressure of the solvent above the solution to its mole fraction in…

A: The correct option is (c)  According to roult's law, a solvent's vapour pressure in a solution is…

Q: A 150 g of ammonium chloride solution is 15.00 % by mass with a density of 1.037 g/mL. Calculate…

A: Given: Mass of solution = 150 g. Density = 1.037 g/mL. And % by mass of NH4Cl = 15 %.

Q: What is the molality of a solution made by dissolving 0.25 moles of KI in enough 0.50 kg of water?

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Q: At a certain temperature the vapor pressure of pure methanol CH3OH  is measured to be 205.torr.…

A: Partial pressure is determined by using equation (1)P­methanol = partial pressure of…

Q: 1. It is desired to prepare cupric sulfate solution by dissolving 250 grams of cupric sulfate in…

A: Given, Mass of CuSO4= 250g Molar mass of CuSO4=159.5 g/mol Density of solution= 1.405g/mL…

Q: The normal freezing point of a certain liquid X is -6.20 °C, but when 7.45 g of benzamide (C,H,NO)…

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Q: 1. How many grams of K2CO3 (Potassium Carbonate) are needed to make 200 mL of a 2. 5 M…

A: The mole concept is a convenient method of expressing the amount of a substance. Any measurement can…

Q: a.) Calculate the molarity of solution of sodim sulfate that contains 5.2 grams sodium sulfate…

A: Molarity (M) of the compound can be described as the moles of solute that can be dissolved per litre…

Q: How many grams of K2CO3 (Potassium Carbonate) are needed to make 200 mL of a 2. 5 M solution?

A: Given, 200 mL of a 2. 5 M

Q: At a certain temperature the vapor pressure of pure water is measured to be 233. mmHg. Suppose a…

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