The following information are given for aqueous solutions of solid Y: - If solid Y is dissolved in water in an insulated vessel, temperature of water increases. - The solubility of Y (s) in water at two different temperatures are given below: At 15°C, 40 g Y/ 100 g H20 At 25°C, 30 g Y / 100 g H20 A solution is prepared at 25°C, by mixing 14 g Y with 30 g H20. Which of the following is true for this solution? 1. The weight of the solution is 39g. II. If the solution is cooled to 15°C, 3 g Y crystallizes. III. Forces of attraction between like molecules exceeds those between unlike molecules.

Q: The heat of solution of potassium acetate (KC2H3O2) in water is -15.30 kJ/mol. If 14.40 g of…

A: Given data set:  Mass of potassium acetate = 14.40 g Volume of water= 560 ml = 0.56 L Initial…

Q: 13. What is the molality of a solution when 12 g of NH3 (17.031 g/mol) is dissolved in 250 g water?…

A: Molality (m) : Number of moles of solute (n) present in 1Kg of solvent (W) is called molality (m)…

Q: The density of pure acetic acid is 1.05 g/mL. If a 1.80 molal solution of NaCl-acetic acid was…

A: Molality(m) of a solution is defined as the number of moles of solute present in the 1 kilogram of…

Q: Lithium chloride (LiCl) has a lattice energy of -834.0 kJ/mol and a heat of hydration of –871.0…

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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: Normal saline solution that is used to dissolve drugs for intravenous use is 0.92% (m/v) NaCl in…

A: Given data : Volume of normal saline = 35 mL % m/v = 0.92 % The given concentration = 0.92% (m/v)…

Q: 13.6 g of solid ammonium nitrate (NH4NO3, molar mass 80.052 g/mol) is dissolved in 120 mL of water.…

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Q: One beaker contains 26 mL of 1.60 M HCl, and a second beaker contains 53 mL of 0.40 M NaOH. Both…

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Q: Available was 250.00 ml of a 15.67 M H,S0, solution (density 1.7872 g/mL). Assume you pipetted 70.00…

A: Hii there, since there are multiple questions posted. we are answering first question. if you need…

Q: A solution prepared by dissolving 18 g sucrose (CH1206) in 90 g water. Calculate the boiling point…

A: Given that: Mass of Sucrose = 18g Mass of water = 90g Kb for water = 0.51°C.kg/mol Molar mass of…

Q: A 10.5 g sample of an ionic compound with a molar mass of 163 g/mol was added to water to form 65.2…

A: Given data: Mass of ionic compound = 10.5 g Mass of solution = 65.2 g Density of solution = density…

Q: enthalpy of solution for ammonium perchlorate is 33.47 KJ/Mol. How many grams must be added to 225.0…

A: Given that -  Enthalpy of Solution for Ammonium perchlorate = 33.47 kJ/mol = 33470 J/mol  Volume of…

Q: er: Determine the heat of solution in kj/mole of solute If 12.35 grams of NaOH are dissolved in…

A: Mass of NaoH = 12.35 gMolar mass of NaoH = 40 g/moleNo of Moles of NaOH = Mass Of NaOHMolar Mass of…

Q: Consider the following data:   Lattice Energy   CaCl2(s) –2247 kJ/mol –46 kJ/mol CaI2(s) –2059…

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Q: At 60 degrees Celsius, a 225-g sample of KNO3 is entirely dissolved in 250 g of water. The…

A: The maximum amount of solute that can be dissolved in a particular amount of solvent is known as…

Q: In a mountainous location, the boiling point of pure water is found to be 98.0°C. Нow many grams of…

A: Elevation in boiling point is defined as the elevation in boiling point of water on addition  of a…

Q: A solution of KClO3 contains 10 grams of solute dissolved in 100 grans of water. At 20 degrees…

A: Solute and solvent together constitute the solution. Solutions are of two types. Homogenous and…

Q: The solubility of glucose is 357 g/100 g H2O at 70°C. A solution is prepared by mixing 450g of…

A: At T = 70℃  Solubility of Glucose is 357 g / 100 g of H2O Thus, 357 g of Glucose dissolved in 100 g…

Q: Equal masses of acetone (CH3COCH3, molar mass = 58 g/mol and density = 0.79 g/mL) and water (molar…

A: Molality is given by  Molality = moles of solute / mass of solvent in Kg Since molality of acetone…

Q: How many grams of ethylene glycol (C2H6O2) must be added to 1000. g water to create an automobile…

A: Colligative properties: The properties which depend on the ratio of the number of moles of the…

Q: 6 What is the molality of the solution obtained by dissolving 2.25 g of glucose in 240 grams of…

A: Given,

Q: 2.503 g of ammonium chloride NH4CI are added to a calorimeter cup containing 25.30 g of water at…

A: ∆Hdissolution = -qsolution Heat loss by the solution,  q = m. c . ∆T m is the mass of water c is…

Q: In the following table are listed various aqueous solutions. For one or more of the solutions…

A: I am solving all the concentration terms for HCl.   a) weight %= 25 already given 25g of HCl present…

Q: What molality (m) will a solution have that was prepared by mixing 220 grams of NaOH in 1200 ml of…

A: Molality (m) of a solution is defined as the number of moles of a solute dissolved in per kilogram…

Q: What molality of N a Cl is required to lower the freezing point of water to -12.4 degrees C? Use…

A: Given: Freezing point of water with NaCl solution = -12.4 oC And Kf of water = 1.853 oC/m.

Q: How would you prepare 455g of an aqueous solution that is 4.45% by mass of Barium hydroxide ? What…

A: Given: Mass of solution = 455 g. And percent by mass of barium hydroxide i.e. Ba(OH)2 = 4.45 %.

Q: What mass of a nonvolatile molecular substance (MM = 50.0 g/mol) must be added to 500 g H2O to…

A: We have to predict the mass of non volatile substance.

Q: The solubility of lead nitrate at 100 degrees Celsius is 140.0g/100g water. A solution at 100…

A: Solubility of Pb(NO3)2 at 100˚C = 140.0 g/100 g water Considering solubility to be 44 g in 38.0 g of…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

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Q: of the resulting solution is Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter   at…

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Q: How many Moles of solute (mol)? The molar mass of CaCl2 is 110.98 g/mol. 7.) What is the Mass of…

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Q: In a coffee-cup calorimeter experiment, 10.00 g of a soluble ionic compound was added to the…

A: Determine the heat gained by the water.

Q: At 20 °C, an aqueous solution of NaCl was prepared by dissolving 11.44 g NaCI (Molar Mass = 58.44)…

A: Molality (m) :-  The number of moles of solute dissolved in one kg (kilogram) of solvent is defined…

Q: solution is prepared disolving 2.00g of an substance in 10.0mL in water at 25°C. The freezing point…

A: Given- Weight of substance =2.00 gram  Volume of water =10.0 mL  T1=25°C T2= -0.350°C  Kf of…

Q: A student dissolved 5.00 grams of ammonium chloride in 95 mL of water. The water temperature went…

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Q: What mass in grams of CH₃OH (MM = 32.04 g/mol) would need to be added to 390.1 g of water in order…

A: ∆Tf = iKfm

Q: 2. An unknown solid Y was dissolved in water resulting to a decrease in temperature of its…

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Q: student combines 0.19 g of Mg metal with HCl and gets a final V of 0.25 L which completely reacts…

A: The solution is as follows:

Q: What mass of ethylene glycol (C2H6O2, molar mass = 62.1 g/mol), the main component of antifreeze,…

A: Given data, molar mass of ethylene glycol  = 62.1 g/mol volume of water is 8.5 L  density of water…

Q: 68.4 g of sucrose is dissolved in 250 g of water. What is the molality or molal concentration of the…

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Q: An aqueous solution of fructose (MM = 180.2 g/mol) has a molality of 4.87 m and a density of 1.30…

A: Molality of a solution is the number of moles of a solute in 1 kg of a solvent. Here molality of…

Q: You wish to prepare an antifreeze solution for your car’s radiator from distilled water and ethylene…

A: Change in temperature = ∆T = -15.00℃ Molecular weight of C2H6O2 =MB = 62.07 g/mol Weight of C2H6O2 =…

Q: 15. Determine the heat of solution in kj / mole of solute for 5.00 of KBr dissolved in 95.00 grams…

A: Given: Mass of KBr is 5 g. Mass of water is 95 g. Specific heat of solution is 4.18 j/g °C.  The…

Q: Lithium chloride has a lattice energy of 861 kj/mol, and a solvation energy of -898 kj/mol. When…

A: When the lithium chloride solid is dissolved in water, energy will be required to break the lattice…

Q: Fill in the values for the table. The molar mass of NaCl is 58.443 g/mol Mass of NaCl (g)   Mass…

A: To complete the below table. Mass of NaCl (g) Mass of solution (g) Volume of solution (mL)…

Q: What molality of N a Cl is required to lower the freezing point of water to -10.0 degrees C? Use…

A: The freezing point depression is observed after the addition of solute particles into a solvent,…

Q: The solubility of KNO3 is 155 g per 100 g of water at 75°C and 38.0 g at 25°C. What mass (in grams)…

A: Given : Solubility of KNO3 at 75 oC = 155 g/100 g of water = 1.55 g KNO3 / g water Solubility of…

Q: The active ingredient in many commercial antifreezes is ethylene glycol (C2H6O2). If you wish to…

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Q: Ethylene glycol (EG), CH₂(OH)CH₂(OH), is a common automobile antifreeze. It is water soluble and…

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