3. Ifthe freezing point of the solution had been incorrectly read 0.30C higher than the true freezing point, would the calculated molar mass of the solute be too high, too low or not be affected? Explain.

Q: When 14.0 g of a certain molecular compound X are dissolved in 85. g of benzene (CH), the freezing…

A:

Q: What mass of glucose (CH,,0s) must dissolve in 2188 g of ethanol to make a 0.57 m solution?

A: The moles of a substance is determined as the given mass upon its molar mass. The molality of a…

Q: Enter your answer in the provided box. Calculate the molality of a 40.5 percent (by mass) aqueous…

A: The concentration of a substance can be measured in terms of mass by mass percentage. This…

Q: Which aqueous solution has a freezing point closer to its predicted value, 0.01 m NaBr or 0.01 m…

A: ΔTf= i kf  x molality The value of  i=VantHoff’s factor decide the depression in freezing point…

Q: What molality of a nonvolatile, nonelectrolyte solute is needed to raise the boiling point of water…

A: Molality of a non-volatile, non-electrolyte solute that is needed to raise the boiling point of…

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

A: Answer: Depression in freezing point of a solution containing non-volatile solute is: ∆Tf=i×Kf×m…

Q: A 8.05 % CH3OH(aq) has a density of 0.976 g/mL at 18°C What is the mole fraction of the solvent in…

A: The mole fraction of solvent in 8.05 % CH3OH(aq) is calculated as,

Q: A 0.058 g sample of a unknown substance was dissolved in 2.635 g of benzene, C6H6. The molality of…

A: Given: The given mass of unknown substance, (m1)= 0.058 g. The given mass of benzene, (m2)= 2.635 g.…

Q: 14. What is the molecular mass of a substance if 22.5 g dissolved in 250 g of water produces a…

A: We are required to find the molar mass of the substance  Mass of substance taken=22.5 gm

Q: An aqueous solution containing 15.1 g of an unknown molecular (nonelectrolyte) compound in 108.5 g…

A: Given: The mass of an unknown compound and the mass of water is 15.1 g and 108.5 g, respectively.…

Q: What molality of a nonvolatile, nonelectrolyte solute is needed to raise the boiling point of water…

A: Given,Kb = 0.520 oC/mΔT= 7.20 oC

Q: A 0.461g sample of an unknown molecular solute is dissolved in 10.0g of water. The freezing point of…

A: given,mass of sample of an unknown solute=0.461 gmass of water=10.0 gfreezing point of the solution…

Q: At equal concentratoins, would a nonelectrolyte solution or electrolyte containing solution have a…

A: A solution containing an electrolyte will have a lower freezing point. The depression in freezing…

Q: What is the boiling point of an aqueous solution that has a vapor pressure of 20.5 torr at 25 °C?…

A: According to Raoult’s law, the vapor pressure of the solution is lower than the vapor pressure 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: What is the osmotic pressure, in torr, of a solution formed by dissolving 0.2516 g of ammonium…

A:

Q: What is the freezing point when 12.70 g of urea (formula mass = 60.00 g/mol) is dissolved in 199.89…

A: The number of moles of a substance is given as the mass of the substance upon its molar mass. The…

Q: Given that acetic acid has a freezing point of 16.60°C and a K, of 3.59°C/m, find the freezing point…

A: Find the molality (m) of the given solution.

Q: Predict the vapor pressure of a solution prepared by mixing 37.5 g solid KNO3 with 175 g water at…

A: The question is based on the concept of solutions. we have to calculate vapour pressure of the…

Q: A solution has a molality of 2.10m where the moles of the solute is 0.7 moles. What is the mass of…

A:

Q: When 1.54 of a certain molecular compound X are dissolved in 55. of g benzonitrile (c,H,CN), the…

A: Here the solute is compound, X and solvent is benzonitrile(C6H5CN). Mass of the solute, X taken for…

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: When 236. mg of a certain molecular compound X are dissolved in 40.0 g of benzonitrile (C,H,CN), the…

A:

Q: A solution consists of 61.5 g of water (18.02 g/mol) and 45.2 g of ethanol (60.6 g/mol). Ethanol is…

A: Given: Mass of the water= 61.5 g The molar mass of the water= 18.02 g/mol Mass of the ethanol= 45.2…

Q: When 0.494 g of K3Fe(CN)6 is dissolved in 100.0 g of water,the freezing point is found to be…

A: The number of ions  present in K3Fe(CN)6 has to be given,

Q: 2. Suppose your thermometer consistently read a temperature 1.2o higher than the correct temperature…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: How many mols of solute are in 125mL of a 2.0M hydrochloric Acid solution?

A: Molarity is defined as the number of moles of solutes present in per litre of solution.

Q: 1. Might any of the ratios you calculated for Table 2 above be useful for predicting how the…

A: Given that -  Ratio of NaCl/water = 5.02g/5 mL    The freezing point of pure liquid, water is about…

Q: Calculate the freezing point of a solution containing 109 gg FeCl3FeCl3 in 171 gg water.

A: Given: weight of solute (FeCl3),  w =109g we know thta, Molecular weight of solute (FeCl3), W=162.2g…

Q: What mass of glycerin (C3H8O3), a nonelectrolyte, must be dissolved in 200.0 g water to give a…

A: As we know, ΔTf = Kf.m.iwhere:ΔTf = reduction of freezing from 0 degree celcius = 0 -(-3.60) = 3.60…

Q: What is the freezing point of this solution? (The freezing point of 1 kg of water is lowered 1.86…

A: Colligative properties are dependent on the number of moles of solute in the solution. There are…

Q: Consider a hydrogen peroxide (H2O2) solution that is 28.3 molal.  Given the density of solution is…

A: Given data is as follows: The molality of the hydrogen peroxide solution = 28.3 molal The density of…

Q: 2) A solution of HESO4 containing 50% H2S04 by mass has a density of 1.40g/mL Express its oncentra…

A: A numerical problem based on concentration terms, which is to be accomplished.

Q: A compound of carbon, hydrogen, and oxygen was burned in oxygen, and 1.000 g of the compound…

A: Given, Mass of compound = 0.1107g. Mass of water = 25.0g = 0.025kg. Freezing point of solution =…

Q: molar mass

A:

Q: Which solute would be more effective at lowering the freezing point of water: MgCI2 and KNO3?…

A: The colligative properties are the properties of substance which depend upon amount of solute added.…

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

A:

Q: Why does the presence of solute in a solution lower its freezing point? Cite sources

A: The temperature at which liquid changes to solid is known as freezing point. Interaction occurs…

Q: What is the molality of a solution made by dissolving 0.25 moles of KI in enough 0.50 kg of water?

A:

Q: Find the molality of this aqueous solution 15.0% by mass kBr (119g/mol).

A: Number of moles of solute that is present per kilogram of the solvent is known as molality.…

Q: Calculate the molality of a 0.410 molar aqueous solution whose density is 1.15 g/mL.

A: Given that  Molarity for a aqueous solution = 0.410 molar density of solution  = 1.15 g/ml To…

Q: freezing point of 10g of CeH12O6 s of an unknown nonvolatile solute zene by 0.500°C.

A: 2) mass of solvent = 150 g = 0.150 kg □Tb = 0.50 °c Kb(benzene) = 2.53 °c/m Molality (m) = = moles…

Q: How can we calculate the freezing point of a solution prepared from a solvent and nonvolatile…

A: Given : Non-volatile solute in a solution  To find : Calculation of a freezing point of solution.…

Q: What is the molality of a solution that is 15.0% by mass sodium chloride and that has a density of…

A: Given : Percent by mass of sodium chloride i.e NaCl = 15.0 % And density of solution = 1.10 g/mL.…

Q: Match the following aqueous solutions with the appropriate letter from the column on the right. 0.15…

A:

Q: The freezing point of a 1 liter aqueous solution containing 10g of an unknown solute is -0.1 °C.…

A: We know that  ∆Tf = kf ×m×i

Q: Match the following aqueous solutions with the appropriate letter from the column on the right. 1.…

A:

Q: 2. Calculate the molality of a solution prepared by dissolving 4.75 g of C10H8 (s) in 75.0 mL of CH6…

A: Given that,  Weight of C10H8(s) to be dissolved in C6H6(l) = 4.75 g Moles of C10H8(s) to be…

Q: b) List the following solutions in order of decreasing freezing point: 0.04 molal glycerol (C3H8O3);…

A: b) Given: Molality of C3H8O3 = 0.04 m Molality of KBr = 0.025 m And molality of C6H5OH = 0.030 m