A solution made by dissolving 150.0 g of an unknown compound in 425.0 mL of benzene to make a solution which has a freezing point 18.6 °C lower than that of pure benzene. Kf for benzene is 5.12 °C/m and the density of benzene is 0.877 g/mL. What was the molality of the solution? How many moles of the unknown compound were dissolved in the solution? What is the molar mass of the unknown compound?

Q: A solution was prepared by dissolving 125.0 g of KCl in 295 g of water. Calculate the molality of…

A: Molality: The molality of the solution is defined by the mole of solute present in one kilogram of…

Q: What is the molality of a 30.0% by mass hydrochloric acid solution? The density of the solution is…

A: Given: The density of the hydrochloric acid solution is 1.1493 g/mL The mass percentage of the…

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

A: given, the mass of naphthalene = 81.2g the volume of carbon tetrachloride = 500. mL the density of…

Q: 2.A solution that contains 12.6 g of a nonvolatile nondissociating solute in 400. g of benzene…

A:

Q: What is the molality of a solution

A: Molality = number of moles of solute/mass of solvent in kilogram  Number of moles = mass/molar mass

Q: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. What is the vapor pressure of…

A: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. We have to calculate the…

Q: A 1.50 M solution of CaCl 2 (MM=109.9 g/mol)in water has a density of 1.11 g/mL. What is the…

A: Molality is defined as number of moles of solute present in 1 kg of solvent.

Q: What is the molality of a solution made by dissolving 19.9 grams of NH 4Br in 910 grams of water?…

A: Given mass of NH4Br = 19.9 g  Given mass of H2O = 910 g  Here , solute is NH4Br and solvent is H2O.…

Q: A solution made by dissolving 150.0 g of an unknown compound in 440.0 mL of benzene to make a…

A: Molality ( m ) : - molality is defined as the number of moles of solute present in one Kg of…

Q: The freezing point of a solution of 1.648 g of an unknown nonelectrolyte dissolved in 76.21 g of…

A: Data given: The freezing point of a solution of an unknown nonelectrolyte, Tf = 1.39 °C The freezing…

Q: A student dissolves 14. g of stilbene (CH12) in 450. mL of a solvent with a density of 1.09 g/mL.…

A: Molarity: The mole of the solute dissolved in one liter of the solution is known as the molarity of…

Q: What is the freezing point (in K) of a solution made by dissolving 19.607g of CCl4 in 130.0 g of…

A: 19.607 g of CCl4 is dissolved in 130.0 g of benzene . Pure benzene has a freezing point of 5.5 °C…

Q: 1. A solution made by dissolving 150.0 g of an unknown compound in 330.0 mL of benzene to make a…

A: MOLALITY = 3.63mole/kg Number of moles of unknown compound = 1.05 Molar Mass of unknown compou =…

Q: 1. Calculate the molality of a solution containing 10.8 g of ethylene glycol (C 2 H 6 O 2 ) in 360 g…

A:

Q: Molality   A solution contains 22.5 g of methanol, CH3OH, dissolved in sufficient water to give a…

A: Molality of a solution is calculated by dividing the number of moles of solute by per kilogram of…

Q: When 169.g of alanine (C3H7NO2) are dissolved in 1000. g of a certain mystery liquid X, the freezing…

A: We have 169 g of alanine , 1000 g of liquid X, depression in freezing point for analine be 4.8…

Q: A 6.06-gram sample of a compound is dissolved in 250. grams of benzene. The freezing point of this…

A: Given: The mass of the unknown compound dissolved in benzene = 6.06 g The mass of benzene = 250 g…

Q: A student dissolves 16.g of benzoic acid C7H6O2 in 125.mL of a solvent with a density of…

A:

Q: What is the molality of a solution made by dissolving 26.3 grams of CsCl in 420 grams of water?…

A:

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.