When carrying out a molar mass determination by freezing point depression experiment. If a solute like chlorobenzene (molar mass = 112.6 g/mol) were used by mistake instead of naphthalene for the determination of the freezing point constant, how would the calculated value of Kf compare to that expected from naphthalene (high, low, no effect)?

Q: Addition of 4.50 g of an unknown substance in 95.00 mL CCl4 raises the boiling point by 0.80K.…

A: We know the relation between elevation of boiling point and Molality of non electrolytic solution :…

Q: When 541. mg of a certain molecular compound X are dissolved in 75. g of dibenzyl ether…

A: we have to calculate molar mass of the substance X

Q: The freezing point depression constant (Kf) of acetic acid is 3.90 \deg Ckg/mol. Using this value…

A: Step 1: Identify the given values:Kf (acetic acid) = 3.90 °C·kg/molΔTf (difference in freezing…

Q: 1.Assume that the measured freezing point of pure cyclohexane using your thermometer was 6.0 °C. A…

A:

Q: The boiling point of ethanol CH3 CH₂OH is 78.50 °C at 1 atmosphere. A nonvolatile, nonelectrolyte…

A: Mass of solvent (ethanol) = 295.0 g = 0.295 kg Raise in boiling point (ΔTb) = 0.300°C Mass of solute…

Q: Suppose that you add 27.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a…

A:

Q: A 16.0 g sample of quartz, which has a specific heat capacity of 0.730 J·g '.°C ', is dropped into…

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

Q: Molecular Formula from Elemental Analysis and Molecular Mass Determination An unidentified covalent…

A: Given,mass of  unknown compound = 6.00 mgmass of water = 1.93 mgmass of CO2 = 16.49 mgfreezing point…

Q: A 0.400-g sample of an unknown compound is dissolved in 20.0 mL of cyclohexane (density = 0.779…

A:

Q: The boiling point of ethanol CH3CH,OH is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Number of grams of ethanol given = 224.0 g Molar mass of testosterone = 288.4 g/mol Elevation in…

Q: Calculate molecular weight of Naphthalene in g/mol

A:

Q: Molecular Formula from Elemental Analysis and Molecular Mass Determination An unidentified covalent…

A:

Q: 24.9 g of an unknown molecular solute is dissolved in 5.01 moles of 1,2-ethanediol (C2H6O2), causing…

A:

Q: When 426. mg of a certain molecular compound X are dissolved in 30. g of benzene (C6H6), the…

A:

Q: Which aqueous solution has a boiling point closer to its predicted/calculated value, 0.030 m KBr or…

A: Elevation in boiling point ∆Tb is a colligative property that depends on the number of moles of…

Q: If the boiling point of an aqueos solution is 103 °C, what is delta TB?

A: Given,  The boiling point of an aqueous solution is 103 °C.  In an aqueous solution water is a…

Q: When 9.730 g of aspirin was dissolved in 102.7 g of benzene, the freezing point was 275.9 K. What is…

A: What is the formula mass of this compound?

Q: When 74.8g of alanine C3H7NO2 are dissolved in 1450.g of a certain mystery liquid X, the freezing…

A: Given  alanine mass= 74.8g , mass of solution = 1450g=  the depression of freezing point ∆Tf =…

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: When 64.8g of sucrose was dissolved in 100g of water, the freezing temperature of the water was…

A: Given when 64.8g of sucrose is added to 100g of water, the freezing point of water becomes ---…

Q: assume that we used a solute with a larger molar mass than salycilic acid. would this change Delta…

A: Answer:Properties that depend on the number of solute particles present in the solution are called…

Q: Given that the vapor pressure of water is 17.54 Torr at 20 ∘C, calculate the vapor‑pressure…

A: Given,Vapor pressure of water = 17.54 Torr at 20 °CConcentration of sucrose solution = 2.30…

Q: When 77.6 g of benzamide (C₂H₂NO): are dissolved in 1250. g of a certain mystery liquid X, the…

A: Mass of benzaldehyde   = 77.6 gram  Mass of solvent = 1250g  ∆T = 5.4°C  i for KBr = 1.84    To find…

Q: When 1.916 grams of a non-ionizing compound is dissolved in 39.46 grams of nitrobenzene (molar mass=…

A: Given that: Freezing point of pure solvent (T0 ) = 5.670°CKf = 8.10 °C kg mol-1Mass of solute =…

Q: 3. Explain why MgCl₂ might be more useful as a de-icer compared to NaCl if both solutes are present…

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

Q: True or False At 25C, a solution of 40% methanol and 60% toluene will have a vapor pressure higher…

A: Colligative properties are those properties which depends on amount of solute and doesn't depends on…

Q: The freezing point of lauric acid was lowered by 1.68°C when a 3.706 g sample of a nondissociating…

A: Solution- The freezing point depression (ΔTf) is given by the formula:  ΔTf = Kf × m × i where Kf is…

Q: When 238. mg of a certain molecular compound X are dissolved in 90.0 g of benzonitrile (CHCN), the…

A:

Q: What is the molarity of HCl in an aqueous solution in which the mole fraction of HCl is 0.220

A: The total mass of the solution is determined as follows.

Q: i =

A:

Q: 1.500 g of a non-dissociating compound is dissolved in 15.00 g of pure water (Kf= 1.86°C/m). The…

A: Calculation of Molar mass of the unknown compound: The mass of the unknown compound = 1.500 g The…

Q: Kf  1.86 Solvent 100.0g Freezing Point of Water, °C 0.00     Volume Added Added Reagent  Van't…

A: Here water is the solvent and ethanol is the solute. Since ethanol is a molecular compound, Van't…

Q: What is the composition of a methanol (CH, OH) - propanol (CH, CH, CH, OH) solution that has a vapor…

A: Given : Vapor pressure of solution = 192 torr.

Q: Here you have 0.30 mole of benzene and 0.70 mole of methylbenzene at 25 °C. a. The following shows…

A: Change in graph on addition of impurity.

Q: When 1.13 g of a certain molecular compound X are dissolved in 75.0 g of formamide NH2COH , the…

A:

Q: When 252. g of alanine (C₂H₂NO₂) are dissolved in 1400. g of a certain mystery liquid X, the…

A:

Q: Assuming that NaCl will dissolve perfectly and form an ideal solution, what mass of NaCl is needed…

A: The freezing point depression is calculated by using the following formula. ∆Tf = m×Kf Where, Kf =…

Q: When carrying out a freezing point depression experiment with cyclohexane, napthalene, and an…

A: The question depends on the concept of colligative property. Depression in freezing point is a…

Q: A 0.520 g sample of an unknown nonelectrolyte compound is dissolved in 4.07 g of lauric acid (Kf =…

A: Given : Mass of sample = 0.520g KF = 3.900C/m

Q: Temperature, °C 3.0 2.0 1.0 0.0 4.0 5.0 8.0 7.0 6.0 0 In an experiment, the freezing point curve of…

A: Freezing point depression : It is defined as the  lowering of the freezing point of a solvent upon…

Q: When 2.40 g of a certain molecular compound X are dissolved in 70. g of formamide (NH,COH), the…

A: Weight of molecule X taken = =2.40 g Weight of solvent formamide = 70. g Freezing point of solution…

Q: ANSWER THE FOLLOWING FOR A THUMBS UP What is the molarity of the solution? What will be the change…

A:

Q: Calculate and enter the freezing point depression of a solution of 52.4 g ethylene glycol (C2H6O2)…

A: B) given,  Assume molar mass is = M Mass solute = 77.5 g Mass of Water = 342 g = 0.342 kg Molality =…

Q: What is the pOH of a 0.60 M solution of a weak base with a Kb equal to 4.4 x 10 82 Select one: O…

A: Note  : As per our guidelines we are supposed to answer first question Please resubmit the other…

Q: What is the freezing point (°C) of a solution prepared by dissolving 13.5 g of (NH4)2SO4 (formula…

A: Mass of Mass of water = 100 gThe molal freezing point depression constant for water =

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.