What are the normal freezing points and boiling points of the following solutions? (a) 22.1 g NaCl in 129 mL of water. [Assume the van′t Hoff factor (i) is equal to 1.8.] Freezing point:   Boiling point:     (b) 16.1 g of urea [(NH2)2CO] in 76.7 mL of water. Freezing point:     Boiling point:

Q: What is the concentration of each of the following solutions? (a) The molality of a solution…

A: 11.58 The concentration of an acid solution is defined as the number of moles of acid per litre of…

Q: What mass of salt (NaCl) should you add to 1.62 L of water in an ice cream maker to make a solution…

A: Given: The volume and density of water is 1.62 L and 1.00 g/mL, respectively. The freezing point of…

Q: 4. A chemist is trying to identify a human hormone that controls the metabolism by determining its…

A: Freezing point depression is one of the colligative properties that can be used to determine the…

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A:

Q: The boiling point of chloroform CHC13 is 61.70°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Given that : The boiling point of chloroform = 61.70°C The molar mass of chloroform = 180.1 g/mol…

Q: What is the freezing point of a solution that is prepared by dissolving 23.5 g of MgCl2 (i = 3) into…

A: Given : mass of MgCl2 = 23.5 g  i for MgCl2 = 3  Mass of water = 125 g  Kf for pure water = 1.86°C/m…

Q: Propylene glycol, C3H6(OH)2, is sometimes used in automobile antifreeze solutions. If an aqueous…

A: Given: Mole fraction of propylene glycol = 0.10  Assuming 1 mole of solution. The moles of C3H6(OH)2…

Q: 3. A,Hs of water is 6024 Jmol-1 at 273 K. The densities of solid and liquid water are 0.915 and…

A: Let t1 and t2 be the freezing points ofwater at P1 = 1 bar and P2 = 100bar

Q: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated…

A: The molality of the solution is calculated as, The molality of the solution is

Q: 5. The boiling point of benzene is 80.1°C and K for benzene 5.12°C/m. When 0.715 g of an unknown…

A:

Q: You have an aqueous solution of NaCl that has a freezing point of -3.55°C. What mass (in grams) of…

A: The freezing point depression (∆Tf) of the aqueous solution when sodium chloride was initially added…

Q: Benzaldehyde (MW= 106.1 g/mol), also known as oil of almonds, is used in the manufacture of dyes and…

A: The freezing point of a solution prepared by dissolving 75.00 g of benzaldehyde in 850.0 g of…

Q: How many grams of BaCl, should be added to 300 g H₂O so that the freezing point of the solution is…

A:

Q: Calculate the freezing point of the following solutions, assuming complete dissociation. 3.1 %%…

A:

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H,O2) must be mixed…

A:

Q: What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 15.0 L of water to…

A: The volume of water is 15.0 L. The freezing point of the solution is 230.08°C. The density of water…

Q: if we add 275g of ethylene glycol, C2H6O2, per 1000g of water to a car radiator, what will be the…

A:

Q: FeCl3 has an experimentally measured van't Hoff factor of 3.400. What is the freezing point (in °C)…

A: The freezing point of the given solution can be calculated as follows -

Q: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated…

A:

Q: To make homemade ice cream, you coll the milk and cream by immersing the container in ice and a…

A: Recall the relation for depression of freezing point∆Tf              ∆Tf=iKfW2×1000W1×M2 Here, vant…

Q: You have an aqueous solution of NaCl that has a freezing point of -5.15°C. What mass (in grams) of…

A:

Q: What is the solubility of O2 in water at 50 oC when the pressure of air is 1 atm.?  Express it in…

A: Henry's law: Solubility of the gas over the liquid solution is directly proportional to the partial…

Q: Arrange the following aqueous solutions in order of increasing freezing points (lowest to highest…

A: Following are the appropriate order of freezing point of the given solutions.

Q: 2. How many grams of urea (H2N-CO-NH:) must be added to 450 g of water to give a solution with a…

A: Use raoult law formula and get the answer

Q: Benzaldehyde (M= 106.1 g/mol), also known as oil of almonds, is used in the manufacture of dyes and…

A:

Q: You have an aqueous solution of NaCl that has a freezing point of -4.85°C. What mass (in grams) of…

A: Given: Mass of water = 1000 g = 1kg Freezing point of pure water = 0.0 oC Freezing point solution =…

Q: Which of the following would exhibit the HIGHEST vapor pressure at 25oC? a. pure water b. a 5%…

A:

Q: 2. Calculate the molality of each of the following solutions: (a) 0.710 kg of sodium carbonate…

A: The molality of the solution can be determined by using the formula given below as;…

Q: Pheromones

A: We will calculate molecular formula and weight

Q: What is the boiling point (in °C) of a solution of 0.150 g of glycerol, C3H8O3, in 20.0 g of water?…

A:

Q: A solution is prepared by dissolving 56.97 g of ethylene glycol, C2H6O2, with 249.8 g of water at…

A: Given that  Mass of ethylene glycol = 56.97 g Mass of water = 249.8 g To calculate the lowering of…

Q: What is the boiling point of a solution of 0.186 g of glycerol, C3 Hs O3, in 20.0 g of water? For

A: ∆Tf=kf ×m and  ∆Tb=kb ×m Where  ∆Tf = depression in freezing point ∆Tb= Elevation in Boiling point m…

Q: What is the freezing point of a solution of 9.04 g of I2 in 75.5 g of benzene?

A: Given: A solution of 9.04 g of Iodine in 75.5 g of benzene Determination of freezing point: First…

Q: You have an aqueous solution of NaCl that has a freezing point of -5.25°C. What mass (in grams) of…

A: The depression in freezing point of the solution is a type of colligative property which involves…

Q: An aqueous solution of isopropyl alcohol, C3H8O, rubbing alcohol, has a mole fraction of alcohol…

A:

Q: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated…

A: Given,  Mass of thyroxine (solute) = 0.455 g  Mass of benzene (solvent) = 10.0 g  Freezing point of…

Q: 8. The vapor pressure of benzene, C6H6, at 25 °C is 93.4 torr. What will be the vapor pressure at 25…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: What is the vapor pressure (in torr) of a 20.9% by mass aqueous solution of glucose (MM=180.16g/mol)…

A: Given : percent by mass of glucose = 20.9 % Assuming 100 g of solution

Q: Which of the following aqueous solutions should have the lowest freezing point: 0.0500m C6H12O6,…

A: Depression in freezing point is defined as the depression in freezing point of water on addition  of…

Q: What is the vapor pressure of a solution made by dissolving 28.5 grams if C3H8O3 in 125 grams of…

A:

Q: What is the freezing point of a solution of dibromobenzene, C6H4Br2, in 0.250 kg of benzene, if the…

A: Given data, boiling point of solution = 83.5 oC Formula used in this question, Depression in…

Q: The vapor of H2O at 25o C is 23.76 torr. What is the vapor pressure of a solution of 50.00g glucose…

A: First, number of moles of water and glucose moles are calculated from its given grams.

Q: Nicotinamide is an important vitamin for metabolism and is soluble in water. Deficiency of this…

A: The Molecular mass of Nicotinamide can be calculated by help of depression in freezing point. It has…

Q: An isotonic solution is prepared by dissolving 4.50 g NaCl (molar mass = 58.44 g/mol) in 500. mL of…

A: The relation between the osmotic pressure and Molarity can be expressed mathematically as: Here, π…

Q: Which of these two aqueous solutions has (a) the higher boiling point, (b) the higher freezing…

A: The required solution is as follows:

Q: What mass of naphthalene must be dissolved in 2.20 ×102 g of benzene to give a solution with a…

A: The required relationship is given below.

Q: Methano

A: When a solute is added to a pure solvent , many changes occur in the properties of those solutions.…

Q: Calculate the osmotic pressure of each of the following aqueous solutions at 20.00°C:   20.3  g of…

A: step 1) osmotic pressure : π = CRT π = osmotic pressure C = concentration R = gas constant = 0.0821…

Q: when 7.94 g of xylene was added to 132.5 g of cyclohexane, the freezing point of the solution was…

A: In this question we used data of, Freezing point of cyclohexane= 6.50℃ Kf of cyclohexane= 20.0 ℃

Q: The molar mass of toluene is 93 g/mol. A solution is prepared by dissolving 8.55 g of toluene in…

A: Given that : Mass of toluene = 8.55 g Molar mass of toluene = 93 g/mol Mass of benzene = 100 g = 0.1…

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.