1) When 2.25 grams of an unknown non-electrolyte dissolves in 12.0 grams of water, the solution freezes at −3.16 °C. What is the molecular weight of the unknown compound? Kf for water = 1.86 °C/ m.

Q: What is the freezing point (°C) of a solution prepared by dissolving 31.1 g of Ca(OH)2 in 185 g of…

A: Given data is as follows: The mass of  Ca(OH)2 = 31.1 g The mass of water = 185 g = 0.185 kg The…

Q: What is the freezing point of a solution prepared by dissolving 63.49 g of glycerin (C3H3O3) in…

A: The freezing point of pure ethanol is -114.1˚C. The amount of glycerin added to 100 g of ethanol is…

Q: 18 g of glucose, C6H1206 (Molar Mass = 180 g mol-1) is dissolved in 1 kg of water in a sauce pan. At…

A: When a solute is added to a pure solvent, it results into decrease of vapour pressure of pure…

Q: Eicosene is a molecular compound and nonelectrolyte with the empirical formula CH2. The freezing…

A: Given that:  Depression in freezing point is 1.75°C  Kf for benzene is 4.90°C/m  Mass of eicosene…

Q: How many moles of sugar must be dissolved in 2.00 liters of pure water to raise its boiling point to…

A: Given  Volume of solution                 = 2 Liter  Elevation in Boiling point       = 102 ℃  Molal…

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 solution prepared by dissolving 24 mg of a nonelectrolytic molecular compound in 2,238 g of water…

A:

Q: 1. Assuming Raoult's Law applies, calculate the vapor pressure of a solution of 20.0 grams of…

A: Number of moles and mole fraction of components can be calculated as follows: No. of moles of…

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: When 0.279 g of a molecular compound, benzoic acid, was dissolved in 43.0 g of benzene, the freezing…

A: Depression in freezing point :-  When a nonvolatile solute is added to pure solvent then its…

Q: Calculate the vapor pressure (in mmHg) of a solution made by dissolving 69.9 g of organic compound A…

A: Given :- the vapor pressure (in mmHg) of a solution made by dissolving 69.9 g of organic compound A…

Q: Ethylene glycol (C2H6O2), a nonelectrolyte, is used as antifreeze in car radiators. A solution…

A: According to the question, The mass of ethylene glycol C2H6O2 is given by = 86.0 gThe mass of the…

Q: When 32.7 g of alanine (C3H,NO,) are dissolved in 500. g of a certain mystery liquid X, the freezing…

A:

Q: The Henry’s law constant for CO2 is 3.4 ×× 10−2 M/atm at 25 °C. Assuming ideal solution behavior,…

A: Henry's law for ideal gases states that at constant temperature, the amount of gas dissolved in a…

Q: When 0 279 g of a molecular compound, beazonc acid, was dissolved in 430 g of benzene, the freezing…

A: The depression in the freezing point is the colligative property and it is defined as the drop in…

Q: Calculate the freezing point depression of a solution containing 0.125 mol of an electrolyte, NaCl,…

A: Molality of solution can be calculated as follows:

Q: Calculate the freezing point (in ºC) of a solution made by dissolving 4.29 g of ethylene…

A: Given :-  Mass of ethylene glycol = 4.29 g  Mass of water = 28.3 g  Kf for solvent = 1.86 K/m…

Q: What is the boiling point and freezing point of a solution that contains 18.0g of NaCl in 100.0 mL…

A:

Q: A solution prepared by dissolving 513mg of a sugar (a molecular compound and a nonelectrolyte) in…

A:

Q: Calculate the vapor pressure of the solution when 10.0 mL of glycerol (C3H8O3) is added to 500.0ml…

A:

Q: Osmotic pressure can be used as a method to estimate the molecular mass of a biomolecule. Determine…

A: It is given that 1 g of a compound X is dissolved in 100 mL of water and has an atmospheric pressure…

Q: When 0.357 g of an unknown compound was dissolved in 60.0 g of benzene (MM: 78.11g/mol), the…

A:

Q: ie vapor pressure a

A:

Q: The normal freezing point of benzene (C6H6) is 5.50 °C and its Kfp value is 5.12 °C/m. A…

A:

Q: 1.00 g of bovine insulin is dissolved in water and diluted to a total volume of 1.00 L. The density…

A: Given : Mass of bovine = 1.00 g Molar mass of bovine = 5950 g/mol Volume of solution = 1.00 L = 1000…

Q: The mass percent composition of an organic compound showed that it contained 40.0% C, 6.7% H and…

A: Given,percentage by mass of atoms in the compound:    40.0% C, 6.7% H and 53.3 % OMass of compound =…

Q: Answers true or false to these statements: 1) The freezing point of aqueous 2.5 m CuSO4 is…

A: Here we have to predict the true or false statements .

Q: The vapor pressure of pure water at 85°C is 434 torr. What is the vapor pressure at 85°C of a…

A:

Q: 1. Assuming Raoult's Law applies, calculate the vapor pressure of a solution of 20.0 grams of…

A: Raunalt's Law : partial vapour pressure of any component above the solution is directly…

Q: An aqueous solution is formed by dissolving 2.000 g of Na3PO4 (163.941 g/mol) in enough water to…

A: Given, Mass of Na3PO4 dissolved= 2.000g Molar mass of Na3PO4= 163.941 g/mol Volume of solution= 10ml…

Q: What is the freezing point of a solution of water if, 25.0 grams of acetone (C3H6O) is mixed with…

A: Please find your solution below : Colligative properties are the properties of solutions that depend…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: Calculate the freezing-point depression and osmotic pressure in torr at 25°C for an aqueous solution…

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

Q: What mass of salt (NaCl) should you add to 1.64 L of water in an ice-cream maker to make a solution…

A:

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: A student prepares a solution by dissolving 2.09 g of para-dichlorobenzene (C6H4Cl2,= 147.0 g/mol)…

A:

Q: B) If the temperature at point (a) on the above graph is 0.1 °C, and the temperature at point (b) is…

A:

Q: 8.) Loratadine (C22H23N2O2Cl) is an antihistamine marketed as Claritin. What is the vapor pressure,…

A: Here we are required to find the vapour pressure of the solution.

Q: Explain the following :(i) Henry’s law about dissolution of a gas in a liquid(ii) Boiling point…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: You are a forensic chemist and vou are given a white powder to analyze. You take a 0.25- g sample of…

A: Given that 0.25 g of a sample is dissolved in 4.0 g of a benzene.Freezing point of the solution is…

Q: What is the freezing point (in K) of a solution made by dissolving 11.983g of CCl4 in 130.0 g of…

A: Given, Mass of CCl4 solute = 11.983 g Mass of benzene solvent = 130.0 g = 0.130 kg Freezing point of…

Q: પાયલ બહેન

A: The number of moles of a weak acid can be calculated as: Moles = given mass/ molar mass…

Q: mol/(L'atm) when dissolved in benzene at 25°C. How many grams of CH4 will dissolve in 1.00 L of…

A: Introduction :  We have to calculate the mass of methane .

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.