The reported freezing point depression of 1% ephedrine sulfate is 0.13. Use the freezing point depression method to determine how many milligrams of sodium chloride would be required to make a 250 ml total volume of 2.5% (w/v) ephedrine sulfate solution isotonic (Answer must be numeric, round to the nearest whole number)

Q: When 21.0 of a certain molecular compound X are dissolved in 55.0 g Of formamide (NH,COH), the…

A: Given: Freezing point of NH2COH solution = -1.4 oC Mass of compound X dissolved = 21.0 g. Mass of…

Q: T OR F The boiling and freezing temperature of a liquid is affected by the amount of solute added…

A: The boiling point is the temperature at which the vapor pressure of a liquid equals the external…

Q: What are the boiling point and freezing point of a 1.47 m solution of naphthalene in benzene? Note:…

A: Answer:- This question is answered by using the simple concept of colligative properties which…

Q: What is the freezing point of a solution made

A: Given  Kf = 4.23c°/m  Mass of solvent = 1kg  Mass of solute = 14.79  I = 2 (KI is added, it will…

Q: [18] Three beakers A-C are each filled with 1 kg of water. To beaker A a nonvolatile, nonelectrolyte…

A: The colligative properties are those properties of solutions that depend on the number of solute…

Q: When 4.33 of a certain molecular compound X are dissolved in 30. g of benzene (c,H,), the freezing…

A: Given: The mass of compound X dissolved in 30 g of benzene = 4.33 g The Kf for benzene = 5.07…

Q: Calculate the freezing point of a solution made by adding 16.43 g of a nonelectrolyte (125.5 g/mol)…

A: Molality is the number of solvent moles per kilogram.Molality is also known as molal concentration.…

Q: When 1.40 g of a certain molecular compound X are dissolved in 45. g of dibenzyl ether (CH,CH,),0).…

A: Answer:- This question is answered by using the simple concept of depression in freezing point when…

Q: When 27.5 g of a certain molecular compound X are dissolved in 90. g of benzonitrile (C6H₂CN), the…

A: Weight of unknown compound X = 27.5 g Weight of solvent benzonitrile = 90. g Molar mass of…

Q: A certain liquid X has a normal freezing point of -4.50 °C and a freezing point depression constant…

A:

Q: A certain liquid x has a normal freezing point of -9.80 °C and a freezing point depression constant…

A:

Q: A solution is prepared by mixing 25 ml pentane (CsH12-d-0.63 g/cm) with 59 ml. hexane (CgH14, d-0.66…

A: Volume of pentane = 25 mL Density of pentane = 0.63 g/cm3 Mass of pentane is:            Density =…

Q: When 89.1 mg of a certain molecular compound X are dissolved in 90. g of benzonitrile (C,H,CN), the…

A: The freezing point of a solvent is the temperature at which, solvent converted to solid-state from…

Q: 13) ** Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar…

A: Formula used to calculate the freezing point of solution in case of freezing point depression is…

Q: Why does the freezing point of a pure solvent remain as a constant value but the freezing point of a…

A:

Q: When 2.43 g of a certain molecular compound X are dissolved in 65. g of formamide (NH₂COH), the…

A: As we know,  Depression in freezing point,    Tf° - Tf = i * Kf * mWhere Tf° & Tf are freezing…

Q: The boiling point of an aqueous solution is 101.12 ∘C. What is the freezing point?   Kb value: .512…

A:

Q: When 0.4129 grams of menthol (MW: 156.27 g/mol) is dissolved in a certain amount of cyclohexane, the…

A:

Q: Test Tube Solute Mass of Deionized Water (g) Mass of solute (g) Freezing Point (C) 1 None 4.140g X…

A: In test tube 2 the solute is NaCl In test tube 3 the solute is Unknown A

Q: When 7.47 g of a certain molecular compound X are dissolved in 40.0 g of cyclohexane (CH,,), the…

A:

Q: A solution is prepared by mixing 0.3659 moles of NaNO3 with 240.4 g of water. Its density is 1.113 g…

A: Answer:- This question is answered by using the simple concept depression in freezing point using…

Q: Arrange the boiling points of the aqueous solutions, relative to pure water. Assume complete…

A:

Q: . Barium chloride has a freezing point of 962°C and afreezing-point depression constant of 108 K kg…

A: First, calculate the molality, m by using the following equation: m=-∆TKf    ............(1) The…

Q: When 1.06 g of a certain molecular compound X are dissolved in 85.0 g of dibenzyl ether…

A:

Q: When 50.7 g of a certain molecular compound x are dissolved in 100 g of formamide (NH, COH), the…

A: Depression of freezing point is a colligative property. Colligative property depends on the number…

Q: When 2.19 g of a certain molecular compound X are dissolved in 100. g of formamide (NH, COH), the…

A: To Calculate molar mass , we would first Calculate depression in freezing point using freezing point…

Q: (NH,),CO) The normal freezing point of a certain liquid X is – 4.4 °C, but when 14.0 g of urea are…

A: The molal freezing point depression constant Kf of X can be calculated by using the formula as:…

Q: Explain why it is the freezing point depression of a solvent does not depend on the identity of the…

A:

Q: Name Time M T W R F The freezing point of pure benzene (CH,) is 5.50°C. The freezing point of a…

A: Given information:Freezing  point of solution  (Tf) = 5.07 °CFreezing  point of pure benzene (Tfo) =…

Q: When 2.85 g of a certain molecular compound X are dissolved in 85. g of dibenzyl ether -1.2 °C.…

A: In the given question->weight of X = 2.85 gmweight of dibenzyl ether = 85 gm = 0.085 kg (1kg =…

Q: (Concentration) A solid mixture made up of 75% of solid A and 25% of solid B by mass is to be…

A: The expression for molality (m) is: m=number of moles of solute mass of solvent (in kg)m=mass of…

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: Note: As per the guidelines solution of first question has been made. For the expert solution of…

Q: When 127. mg of a certain molecular compound X are dissolved in 55.0 point of the solution is…

A: A numerical problem based on properties of liquids. A set of data for depression of freezing point…

Q: When 1.38 g of a certain molecular compound X are dissolved in 90.0 g of cyclohexane (C,H,,), the…

A: The molality of a component is expressed as the ratio of the mass of solute to the mass of solvent…

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.