11. A solution of 2.11 g of a nonelectrolyte dissolved in 63.6 g of chloroform is found to freeze at -64.6 °C. What is the molar mass of this compound?

Q: 5. What is the boiling point of a 1.42molal MgS solution? (Ko of water = 0.512°C/molality) 6. What…

A: Formula used for elevation in boiling point: Formula used for lowering in freezing point: Where, i…

Q: The vapor pressure of 0.388 g of a pure substance is 0.631 atm at 20degree celcius (the molar mass…

A:

Q: Why does the solubility of any gas in water decrease with rising temperature?

A: When water with gas is subjected to heat, the kinetic energy of molecules present in both solute and…

Q: You are given a bottle of solid X and three aqueous solutions of X—one saturated, one unsaturated,…

A: How to determine  X—one saturated, one unsaturated, and one supersaturated solutions has to be…

Q: You are given a bottle of solid X and three aqueous solutionsof X—one saturated, one unsaturated,…

A: Saturated solution is the one in which there is maximum amount of dissolved solute at a particular…

Q: Describe the factors that affect the solubility of a solid in a liquid. What does it mean to say…

A: There are following factors which affect the solubility of solid in a liquid -  (1) Temperature -…

Q: Five grams of an organic solid is dissolved in 107.0 g of benzene. The boiling temperature of this…

A:

Q: A solution that contains 16.6 g of a covalent compound dissolved in 500. g of benzene freezes at…

A: Given,           Weight of the covalent compound (W2) = 16.6 g           Weight of the solvent…

Q: The freezing points and boiling points of the solution which contains 22.1g NaCl in 129 mL of water…

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

Q: What is the molalityof solution made by dissolve 25 g of NaCl in to 2.0 Liter of water. Assume the…

A: Given: Mass of NaCl=25 g Volume of water=2.0 L Density of water=1.0 g/mL

Q: Calcium chloride, CaCl2, has been used to melt ice from roadways. Given that a solution is 35% CaCl2…

A:

Q: What mass of ethylene glycol (molar mass = 62.0 g mol-1) must be added to 5.50 kg of water to lower…

A: The depression in freezing point can be determined as follows, Depression in freezing point ΔT = i x…

Q: A solution contains 0.210 mol of isopropanol (C3H¬OH) dissolved in 1.600 mol of water. (a) What is…

A: We know basics that mole =given mass / molar mass   Mole fraction=no of mole /(total no of mole)…

Q: A 0.01 molal solution of K3Fe9(CN)6 freezes at -0.062C. What is the apparent degree of dissociation?…

A:

Q: A 31.9 g sample of a K2SO4 dissolves in 180. g of water. If the Kf  (H2O) = 1.86 oC/molal.  What is…

A: Depression in freezing point is given by  depression in freezing point = Kf X m X i  where m =…

Q: A solution contains 0.290 mol of isopropanol (C3H7OH) dissolved in 1.420 mol of water. (a) What is…

A: Mole fraction of component A = Number of moles of A/Total number of moles Mass percent of component…

Q: An aqueous solution contains 17.5 g of an unknown molecular compound in 100.0 g of water and has a…

A: Given : aqueous solution of compound (means solvent is water). Mass of solute = 17.5 g Freezing…

Q: What is the molality of a solution prepared by dissolving 23 g of ethanol in 200 g of water?

A: Mass of ethanol = 23 gMolar mass of ethanol =46 g/moleNo of moles of ethanol = Mass of ethanolMolar…

Q: Calculate the mass of ethylene glycol (formula mass = 62.1 g/mol, an antifreeze component, that must…

A: The properties associated with the solution that is altered by the addition of the non-volatile…

Q: a. Is -8.0C°. What is the molal concentration of the solution? (K; =-1 a-1.86 b-4.3 C-4.5 d-14.8…

A: Given,  Freezing point of the solution = Tf =  - 8.0 0C What is the molal concentration or molality…

Q: In 400. g of water at 50 degrees Celsius, approximately what mass of substance C will dissolve?

A: AT 50o C 100 g of H2O dissolve 30g of substance C .

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.73.…

A: Given: vapour pressure of A, PA∘=42.5 torrmole fraction of A, xA=0.73Vapor pressure of pure B,…

Q: 1 A certain liquid X has a normal freezing point of –1.00 °C and a freezing point depression…

A: Given:  Normal freezing point of X=-1.00oC Freezing point depression constantKf=2.88oCKgmol-1 Mass…

Q: What mass of BaCl2 is needed to be dissolved in 1200 g of water to prepare 0.5-molal BaCl2 solution?

A: Molality is defined as the moles of solute that are present in 1 kg of solvent. The formula for…

Q: 9. A solution is prepared by condensing 4.00 L of a gas, measured at 27°C and 748 mmHg pressure,…

A: The given data contains, Volume = 4.00 L. Pressure = 748 mm Hg. Temperature = 300 K. mass of solvent…

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of barium acetate (255.4…

A: The molality is particularly used to express certain solution's concentration in mol/kg unit. If…

Q: 1. A solution contains 0.180 mol of isopropanol (C3H7OH) dissolved in 2.180 of water. a. What is the…

A: The concentration of the solution can be expressed in a molality. The molality is the number of…

Q: at what temperature will a solution that is composed of 0.73 moles of glucose in 650mL of water…

A: Elevation in boiling point: ∆Tb = i×kb×mTb-Tb° =i×kb×moles of solutemass of solvent (in kg)…

Q: Two volatile substances are mixed with one another so that the solution has a vapor pressure of 125…

A: Raoult's law for volatile solute states that in a solution, the vapour pressure of a component at a…

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.89.…

A: Sum of mole fractions in a mixture can be taken as 1 Mole fraction of A = 0.89 Mole fraction of B =…

Q: Please help

A: The molality (m) of the solution is calculated as shown in equation (1) where m is the magnesium…

Q: How many grams of electrolyte KF (molar mass = 58.10 g/mole) must be added to 64.10 g of ethanol (Kf…

A: Consider the given information is as follows; Molar mass of KF = 58.10 g/molMass of KF (solute)=…

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: The normal bolling point of a certain liquid X is 114.70 °C, but when 58.3 g of barlum hydroxide…

A: Given: Normal boiling point of liquid X = 114.70 oC. Mass of Ba(OH)2 dissolved = 58.3 g. Mass of…

Q: how would you prepare a 1.50 molal solution of sucrose in water ? at what temperature would the…

A: The concentration is also expressed in terms of molality. The formula of molality is as follows, To…

Q: 7.64 grams of unknown solute is added to 38.6 grams of water to produce a solution that freezes at…

A:

Q: The freezing points and boiling points of the solution which contains 25.0 g NaCl in 129 mL of water…

A:

Q: A solution is made up by dissolving 15.0 g MgSO4· 7H2O in 140.0 g of water. What is the molality of…

A: Since molar mass of solute i.e MgSO4.7H2O = Atomic mass of Mg + Atomic mass of S + Atomic mass of O…

Q: A solution containing 8.0 g of an unknown liquid and 92.0 g water has a freezing point of -2.50 °C.…

A:

Q: A 12.0-g sample of a nonelectrolyte is dissolved in 80.0 g of water. The solution freezes at −1.94…

A:

Q: A 2.20 g sample of a non-electrolyte is dissolved in 51.1 g of water. The solution freezes at −1.23℃…

A: Given :  Mass of solute = 2.20 g  Mass of solvent = 51.1 g  Freezing point of solution = -1.23oC  To…

Q: A certain liquid x has a normal freezing point of 1.30 °C and a freezing point depression constant…

A: The depression in the freezing point is calculated by the formula: ∆Tf=mKf Where m is the molality…

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of potassium acetate (98.15…

A: Depression in freezing point is given by following equation.

Q: 15.0 g of an unknown molecular material was dissolved in 450 g of water. The resulting solution was…

A: The freezing point of a substance is the temperature at which there exists an equlibrium between its…

Q: What molal solution is made when adding 90 grams of K2SO4 to 0.55 kg of water?

A: Morality is defined as number of moles of solute dissolved in per kg of solvent.  It is denoted by…

Q: A 30.0 mL sample of this aqueous HX solution freezes at – 0.186 oC. What is the molar mass of HX?

A: Molality is a measure of number of moles of solute present in 1 kg of solvent.

Q: A forensic chemist is given a white solid that is suspected of being pure cocaine (C17H21NO4, molar…

A: Given that: Mass of given white solid = 1.22 ± 0.01 g Mass of solvent(benzene) = 15.60 ± 0.01 g…