(a) Use the following data to calculate the combined heat of hydration for the ions in potassium bromate (KBrO₃):ΔH(lattice)=745 kJ/mol ΔH(soln)=41.1 kJ/mol (b) Which ion contributes more to the answer to part (a)? Why?

Q: Certain salty water containing sodium chloride is found to boil at 103.7°C. If there is 700 g of…

A: Given that:  Boiling point of solution = 103.7°C Mass of water = 700g Kb = 0.52°C/m Molar mass of…

Q: What is the freezing point (in degrees Celcius) of 4.30 kg of water if it contains 196.9 g of…

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

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: A solution containing polymer of an unknown structure, and with an approximate molar mass of 1.75 x…

A: We are here given that  molar mass of unkown structure =1.75×104g/molvolume of organic solvent…

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

A:

Q: Which of the following ions does have the most exothermic standard molar enthalpy of hydration AH°…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. 4) The…

Q: what is the molar mass of toluene if 0.85g of toluent depresses freezing pt 1.00 x102 g of benzene…

A:

Q: How many grams of ethylene glycol (molar mass = 62.07 g/mol) must be added to 1500.0 g of water to…

A:

Q: 13. What is the molality of a solution made by dissolving 17.5 g of NaC;H;O2 in 45.0 grams of water?…

A: Molality (m) :-  The number of moles of solute dissolved in one kg of solvent is defined as Molality…

Q: 3. A,Hs of water is 6024 Jmol-1 at 273 K. The densities of solid and liquid water are 0.915 and…

A: Let t1 and t2 be the freezing points ofwater at P1 = 1 bar and P2 = 100bar

Q: If 0.300 mol of a nonvolatile nonelectrolyte are dissolved in 3.50 mol of water, what is the vapor…

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Q: 9) Adding 1g of benzene, C,H6, to 70g cyclohexane, C6H12, lowers the freezing point of the…

A:

Q: What is meant by a “negative deviation from Raoult’s Law” for a mixture of two volatile compounds,…

A:

Q: What would be the vapor pressure of water at 85°C above a solution made by dissolving 42.71 g of…

A: When  a non volatile solute adds to a volatile solvent , the vapour pressure of solvent lowers.…

Q: The freezing point of a solution containing 65 g of a compound in 100 g of  benzene is 3.80C. What…

A:

Q: The freezing pt. of a solution containing 65g of a compound in 100g benzene is 3.8 degree celcius.…

A: The depression in freezing point is directly proportional to the molality of the solution. ∆Tf…

Q: The boiling point of a methanolic solution of the non-electrolyte, acetamide (CH;CONH;) is 66.9 °C.…

A: According to Raoult's Law ΔTbf = i * Kb* m  m = molality of the solution Kb = Boiling point constant

Q: Is vapor pressure of NaCl aqueous solution equal to vapor pressure of MgCl2 aqueous solution??

A: The pressure above a liquid is known as its vapor pressure. When a non-volatile solute is added to a…

Q: If 150 g of ethylene glycol (C 2H 6O 2) is added to 1,000. g of water, what is the freezing point?

A: Kf value of water is 1.86 K Kg mol-1. Depression in freezing point when a non-volatile solute is…

Q: The lattice enthalpy of sodium chloride, AH° for NaCl(s) → Na* (9) + Cl¯(g) is 787 kJ/mol; the heat…

A: The lattice enthalpy of NaCl is given as 787kJ/mol. Heat of aqueous NaCl solution is +4.0kJ/mol. The…

Q: The molal freezing point constant for water is 1.86 degreesC/m. At what temperature will a mixture…

A: The freezing-point depression is given by

Q: Fluorocarbons (compounds that contain both carbonand fluorine) were, until recently, used as…

A: All known compounds can be dissolve in certain solvents whereas they remain insoluble in other…

Q: 1) What is the change in freezing point of a solution containing 2.36 moles of NaCl dissolved in…

A: (1)  Given: The number of moles of NaCl=2.36 moles Mass of solvent = 1.00 Kg To find: Change in…

Q: Safrole is contained in oil of sassafras and was once used to flavor root beer. An 8.50 g sample of…

A: Given: 8.50 g of safrole was dissolved in 365.8 g diphenyl ether. Kf for diphenyl ether is…

Q: Which of the following substances is more soluble in hexane (C6H14) than in water

A: Introduction-          Water is a universal solvent as it dissolves most of the compounds in it. It…

Q: 3. A student dissolved 10.0 g of an unknown non-electrolyte solute in 100.0 g of bezene, C6H6. The…

A:

Q: What would be the osmotic pressure at 17°C of an aqueous solution containing 1.85g of sucrose…

A:

Q: The freezing point of a solution prepared by dissolving 126.3 mg of caffeine in 10.0 g of camphor is…

A: A numerical problem based on colligative properties, which is to be accomplished.

Q: When 6.31 g of a certain nonvolatile solute is dissolved in 505 g of water, the freezing point of…

A: Given data is as follows: The mass of nonvolatile solute = 6.31 g The mass of water = 505 g = 0.505…

Q: What is the effect on the vapor pressure of a solution with particularly strong solute-solvent…

A:

Q: What is the freezing point (in degrees Celcius) of 3.79 kg of water if it contains 192.8 g of…

A: Given : Mass of butanol = 192.8 g Mass of water = 3.79 Kg  Freezing point depression constant of…

Q: Silver nitrate has a lattice energy of -8.20X102 kJ/mol and a heat of solution of +22.6kJ/mol.…

A: Heat of solution(∆Hsolution): It can be defined as the heat released or absorbed when 1 mol solute…

Q: The Rast method for determining molar masses uses camphor as the solvent. Camphor melts at 178.4°C,…

A: The given data contains, melting point of camphor = 178.4°C Kf=37.7 K kg mol-1 ∆T…

Q: Estimate the boiling point of 5 LL of water to which a teaspoon (6 gg) of salt (NaCl)(NaCl) has been…

A: Boiling point of water = 100°C  Volume of water = 5L or 5000mL Mass of salt = 6g  Molar mass of salt…

Q: Crude oil pumped out of the ground may be accompanied by formation water, a solution that contains…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: Magnesium bromide, MgBr2, has a lattice energy, AHjattice, of -2406.0 kJ/mol and a heat of…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: How many grams of NaOH is required to prepare 20L of 0.75N solution? What is its molarity, molality,…

A:

Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

A: A colligative property is a property that depends on the number of moles of solute, not on the…

Q: What is the molality of ethanol in a solution made by dissolving 14.6 g of ethanol, C2H5OH, in 53.6…

A:

Q: Glucose, C6H12O6, in water is often used for intravenous feeding. Sometimes sodium ions are added to…

A: Given that : Mass of Na+ = 2.0 mg = 0.002 g Mass of glucose = 6.00 g Mass of water (solvent) = 112.0…

Q: What is the freezing point of a solution with 7.53 g of n-propanol (C3H8O) dissolved in 100.0 mL of…

A:

Q: What mass of naphthalene must be dissolved in 2.20 ×102 g of benzene to give a solution with a…

A: The required relationship is given below.

Q: What is the molality of NaCl in a solution that is 3.000 M , with a density of 1.070g mL^ - 1? Based…

A:

Q: The freezing point of benzene, C,H6. is 5.500 °C at 1 atmosphere. K(benzene) = 5.12 °C/m In a…

A: A numerical problem based on colligative property, which is to be accomplished.

Q: If 528 mg of an unknown sample was dissolved in 10.00 grams of t-butanol (C4H9OH) and the freezing…

A: Solution Freezing point depression refers to the lowering of the temperature of solvents upon the…

Q: The vapor pressures of pure benzene and toluene at 25 ° C are 95.1 and 28.4 mmhg,respectively. A…

A:

Q: Suppose that you add 27.5 g of an unknown molecular compound to 0.250 kg of benzene, which has a Kf…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions…

Q: The freezing point depression constants of the solvents cy-clohexane and naphthalene are…

A: The freezing point depression constant, ΔTf – For Cyclohexane = 20.1 ◦C For naphthalene = 6.94 ◦C

Q: The enthalpy of hydration of Li+1 is -520 kj/mol. Calculate the enthalpy of solution of LiF(s)

A: Given: Enthalpy of hydration of Li+1 = -520 kj/mol Lattice energy of LiF(s) = 1030 kJ/mol

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.