7. Freezing point of pure Naphthalene from cooling curve- 8. Freezing point of solution 9. AT 10. Molality of solution, m I1. Molar mass of Unknown 12. Include graphs of cooling curves CALCULATIONS

Q: Calculate the boiling point of a solution containing 10.5 m of ethylene glycol and water solution

A: Equation for change in boiling point (ΔTb )  is given by,      ΔTb = i × kb × m  i = van't hoff…

Q: 37. What is the boiling point of a solution that is a mixture of 37.5 mol% A and 62.5 mol% B? bpt.…

A: Given phase diagram:

Q: Antifreeze Protect a car from freexing, It also pvotect it fro Ouerheating. Calculate the freezins…

A: Given ,  Mass of ethylene ethylene  glycol (w) = 100 g Molar mass of ethylene glycol (M) = 62.07…

Q: 1. For a solution containing 14.4 gg FeCl3FeCl3 in 171 gg water i need help with calculating the…

A:

Q: 1 0.0613 kg of biphenyl (C H. ) is dissolve in benzene (C H.) to create a solution with 12 10 a…

A: Given: mass of biphenyl = 0.0613 kg = 61.3 g Volume of benzene = 350.0 mL molar mass of biphenyl =…

Q: Rate by freezing point depression: 1. Glucose 2. Urea 3. Sodium chloride

A:

Q: calculate the mass percent of methanol in a solution containing 2g. of methanol with 240g of water.

A:

Q: . Ethylene glycol (CH2OHCH2OH) is used in antifreezebecause, when mixed with water, it lowers the…

A: Now, the depression in freezing point can be expressed as,…

Q: At a certain temperature the vapor pressure of pure chloroform (CHCI,) is measured to be 255. torr.…

A: Raoult's law states that the vapor pressure of a component is equal to the mole fraction of that…

Q: II. Freezing point of a pure solid. Data Table. 1. mass of pure naphthalene o l seode os 9.579g…

A: Mass of pure napthalene = M = 9.579 g = 9.579 * 10-3 kgFreezing Point of napthalene = TN = 78.6…

Q: Data was collected to determine the molar mass of a nonvolatile solid solute when dissolved in…

A: Given  Mass of cyclohexane=10.14 g Mass of solute=0.255g Freezing point change     3.04 oC

Q: 3. Arrange the following aqueous solutions in order of increasing freezing points (lowest to highest…

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

Q: Calculate the freezing point of solution given below. A solution is prepared by condensing 4.00 Lof…

A: Option 1 should be the correct answer (-10.930C)

Q: What is the relationship between the freezing point depresson and the molality of solution? O The…

A:

Q: Given data SUGAR sodium chloride Freezing point, °C   -2.30 0C -3.90 0C DTf   Click or tap…

A: Freezing point of a substance is the temperature at which the solid and liquid forms of the compound…

Q: At a certain temperature the vapor pressure of pure acscenic acid (HCH3CO2) is measured to be 261.…

A:

Q: I need to make a solution of 50% ethanol in water (by mass). The partial molar volume of water is…

A: The given solution is 50% ethanol in water by mass. Assume the mass of solution be 100 g. Thus, mass…

Q: Mass of test tube, beaker and cyclohexane = 100.17 g Mass of test tube and beaker = 84.07 g Freezing…

A: Depression in freezing point is the drop in the freezing point of a substance due to addition of any…

Q: Calculate the boiling point of the solution 3.1 %% KClKCl by mass (in water)

A: Boiling point is the temperature at which vapor pressure of liquid become equal to atmospheric…

Q: 500 g of water. The freezing point of the solution decreases by 3.8 degrees  C . Calculate the Van't…

A: Mass of NaCl = 30 g Moles of NaCl = 30/58.5    = 0.513 mol Molality(m) = moles /mass of solvent(kg)…

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

A:

Q: Determine the molality of an aqueous solution that is4.5% urea by mass.( The molar mass of urea is…

A: molality= weight of solute/molecular weight                             ×1000/weight of solvent m=…

Q: Why are units of molality (moles solute/kg solvent) used when discussing temperature-related…

A: The concentration units of molality is more preferable rather than in molarity while discussing the…

Q: A certain substance X melts at a temperature of -5.5 °C. But if a 600. g sample of X is prepared…

A: Depression in freezing point, ∆T = m × Kf

Q: 2. A commercial bleach solution contains 3.62 mass percent NaOCI in water. Calculate the molality of…

A: The molality is the term used to define the concentration of the solution.In order to find the…

Q: A 10% solution (by mass) of sucrose in water has freezing point of 269.15 K. Calculate the freezing…

A: Colligative properties explain the physical change observed on the addition of solute to solvent.…

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: COMPARING TWO SOLUTIONS 0.50 m sodium chloride and 0.50 M sucrose. calculate the boiling temperature…

A:

Q: 1. Fill in the blanks in the table for aqueous solutions of the compounds shown. The density of the…

A: The objective of the question is to fill the table.

Q: A solution is made using 15.7 percent by mass CH2CI2 in CHCI3. At 30 °C, the vapor pressure of pure…

A: d) Given : Mole fraction of CH2Cl2 = 0.21  Vapour pressure of pure CH2Cl2 = 490 mm Hg And vapour…

Q: A certain sample of concentrated hydrochloric acid is 54.9 % HCI. Calculate the molality of this…

A: To calculate the molality , we would need moles of HCl and mass of solvent .  So we would use given…

Q: . An unknown substance has a van’t Hoff factor of 3.4. Into exactly 1 kg of water, you dissolve 16.2…

A:

Q: If a 1-molal solution of NaCl in water shows a freezing-point depression of 3.7 oC, what is the…

A: Given,  Molality of NaCl solution = m = 1 molal  Freezing-point depression = ΔTf = 3.7 oC What is…

Q: Match the following aqueous solutions with the appropriate letter from the column on the right.…

A: column  matches 0.19 mNaCl                                     A.Lowest freezing point 0.13 mCuCl2…

Q: molality of

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

Q: c) Calculate the freezing point of a solution containing 6.0 %% KCl by mass (in water). d)…

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

Q: True or False: The “arrest” temperature in the cooling curve of a solution corresponds to the…

A: The statement is false.

Q: Calculate the freezing point of the solution when 3.54 moles of non-electrolyte is dissolved in…

A: Given , moles of non electrolyte = 3.54 mol mass of water = 0.678 kg Kf (for water )=-1.86 °C kgmol

Q: mass percent

A:

Q: Determine the freezing point of the following solution: A. 0.5 mole Br2 dissolved in 507g…

A: We have to predict the freezing point of solution.

Q: An old sample of concentrated sulfuric acid to be used in the laboratory is approximately 97.9…

A: Given:97.9 % sulfuric acid acid by massTo determine the molarity and molality of solutionThe density…

Q: The freezing point of pure benzene (C,H,) is 5.50°C. The freezing point of a solution containing…

A: depression in freezing point is colligative property depression in freezing point ∆Tf=Kf × m When…

Q: )A 315.5 g of sodium chloride is dissolved in 900 g of water at 25 degree Celsius. Find: a. Final…

A:

Q: Molality = 9.13 m 50.5 g Substance A (mm=46.07 g/mol 120.0 g of water Assuming that substance A is…

A: This question totally based on colligative property. boiling point elevation = i Kb × molality

Q: 14. How many grams of potassium hydroxide are needed to make 600.0mL of 0.450M potassium hydroxide…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: A solution of 5.00 grams of an unknown compound is dissolved in 0.100 kg of benzene freezes at 4.1…

A: The freezing point depression constant (KFP) for benzene = -5.12 °C/molal The freezing point of pure…

Q: 97. Consider an aqueous solution that freezes at -0.229°C and is composed of 4.00% by mass maltose.…

A: To calculate the molar mass of maltose, we first need to determine the number of moles of maltose in…

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.