The lattice energy of KBr is-680 kJ/mol, and the enthalpy of hydration is -660 kJ/mol. Calculate the enthalpy of solution per mole of solid KBr.

Q: A solution was made by dissolving 60.7 g iron (III) nitrate (MM = 240.88 g/mol) into 107 g water (MM…

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Q: The colligative molality of seawater is approximately 1.10 m. Calculate the vapor pressure of sea…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The boiling point of an aqueous solution is 101.69 °C. What is the freezing point? Consult the table…

A: In this question, we will determine the freezing point of aqueous solution.  Given : boiling point…

Q: The vapor pressure of a pure water at 26.0°C is 25.21 torr. The vapor pressure of a solution which…

A: According to the Raoult's law for dilute solutions the relative lowering of vapor pressure is equal…

Q: The concentration of this solution in parts per million is?

A: Given :- mass of glucose(solute) = 0.125 g                mass of solution = 250 g  To calculate :-…

Q: Explain the influence of solutes on water properties. Does this reflect colligative properties?

A: A substance's colligative property is a characteristic that changes in accordance with the quantity…

Q: An aqueous solution of nickel(II) iodide has a concentration of 6.98×10-2 molal. The percent by mass…

A: Given: Molality = 6.98×10-2 molal

Q: At 25°C, the vapor pressure of pure benzene is  P1== 0.1252 atm. Suppose 6.40 g of naphthalene,…

A: The Raoult's for non volatile solute can be expressed as,…

Q: The vapor pressure of benzene, C6H6, is 94.6 Torr at 25 °C. A nonvolatile compound was added to…

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Q: What is meant by the term colligative property?

A: A simple solution is made of two components that is a solute and  a solvent. The substance that is…

Q: Potassium nitrate has a lattice energy of – 163.8 kcal/mol and a heat of hydration of -155.5…

A: To solve the question, we need to convert the energy from kcal to kJ.  ∆Hlattice=-163.8 kcal1…

Q: What are the main difference between molarity, molality and normality.

A: Molarity: Molarity is defined as the total number of moles of a solute per litre of solvent. It…

Q: Find the enthalpy of hydration if the lattice energy for CaCl2 is -2195 kJ/mol. The enthalpy of…

A: The enthalpy of solvation is defined as, From the above formula, we can find the enthalpy of…

Q: An aqueous solution of a nonionic (that is, nonelectrolyte) solute has a freezing point of -0.290…

A: Let the molar mass of the solute be x. The molality of the solution can be expressed as follows-

Q: The boiling point of an aqueous solution is 101.87 °C. What is the freezing point? Consult the table…

A: Given data : Boiling point of solution = 101.87°C Freezing point constant (Kf) = 1.86 °C.kg/mol…

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: The lattice energy* of NaI is -686 kJ/mol, and the enthalpy of hydration is -694 kJ/mol. Calculate…

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Q: Suppose that 98.0g of a nonelectrolye are dissolved in 1.0 kg of water. The freezing point of this…

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Q: The molality of the solution is ____ m. The boiling point of the solution is _____°C

A: Given that:          Mass of manganese nitrate = 10.65 g Molar mass of manganese nitrate = 179.0…

Q: List the colligative properties, provide the basic formulas describing them with an explanation…

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Q: A certain sample of concentrated hydrochloric acid is 54.9 % HCI. Calculate the molality of this…

A: To calculate the molality , we would need moles of HCl and mass of solvent .  So we would use given…

Q: Please explain the concept and process of each colligative property.

A: Colligative properties are those properties of the Solution which depends on number of solute…

Q: The enthalpy of solution of KCI is 40 kJ/mol. The hydration energies of K* and Cl are -315 kJ/mol…

A: Lattice energy is the amount of energy released when one mole of crystalline ionic compound formed…

Q: What are colligative properties? What is osmotic pressure?

A: The question talks about the concept of solutions. a solution is a homogeneous mixture having no…

Q: A 40.0% by mass solution of HC1 has a density of 1.198 g/mL. Determine the molarity and molality of…

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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: Acetone (molar mass = 58.0 g mol) has a vapor pressure at a given temperature of 166 torr. At the…

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Q: (1)What is solution? (2)What is mixture? (3)What is suspension? (4)What is colloidal solution?

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Q: 2. Sodium nitrate has a lattice energy of -2.48 x 102 kJ/mol, and a heat of hydration of -234…

A: The number of moles of sodium nitrate can be determined as follows: Number of moles of NaNO3  =…

Q: What is osmosis? What is osmotic pressure?

A: Osmosis:From low concentrated solution, where the solvent molecules go through a semipermeable…

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: A 2.0 gram sample of a non-electrolyte is dissolved in 100 grams of water. If the resulting solution…

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Q: Calculate the molality of each of the following aqueous solutions: (a) 2.50 M NaCl solution (density…

A: To solve this problem we have to calculate the molality of the given Solution .

Q: What is the molality of nitric acid in a concentrated solution of nitric acid (68.0% HNO3 by mass)?…

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Q: 123.2 g of non-volatile ethylene glycol (62.07 g mol ) is added to 304 g of water at room…

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Q: A solution is prepared at 20°C and its concentration is expressed in two different units; Molarity…

A: When two or more number of solutes in same or different quantities are dissolved together in a…

Q: . A sealed flask containing solutions that was previously heated was left in the room to cool down.…

A: Concentration refers to the amount of solute (mass or mol or volume) present per unit mass of…

Q: What observable characteristics are common in the solutions? What substance does this characteristic…

A: Based on composition of matter we have pure and impure substances. chemical classification of matter…

Q: A solution of sodium chloride in water has a vapor pressure of 19.6 torr. What is the mole fraction…

A: Given data, The vapor pressure of pure water = 23.8 torr. The vapor pressure of solution = 19.6…

Q: The boiling point of an aqueous solution is 102.46 degrees Celcius. What is the freezing point?…

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Q: How does the solubility of a gas in a liquid depend on temperature?

A: Solubility is the quantity of solute (solid, liquid or gas) that will dissolve in a given amount of…

Q: molar mass

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Q: A 150 g of ammonium chloride solution is 15.00 % by mass with a density of 1.037 g/mL. Calculate…

A: Given: Mass of solution = 150 g. Density = 1.037 g/mL. And % by mass of NH4Cl = 15 %.

Q: Consider an aqueous solution containing sodium chloride that has a density of 1.01 g/mL. Assume the…

A: The ratio of moles of solute to the mass of solvent in Kg is known as 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: How many grams of testosterone, C19H28O2 (288.4 g/mol), must be dissolved in 255.0 grams of ethanol…

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Q: Consider an aqueous solution containing sodium chloride that has a density of 1.01 g/mL. Assume that…

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Q: added to a solvent such as water, which of the following boiling points is not reasonable for the…

A: As we know,  if we add Non-volatile solute in water , elevation in boiling point takes place. So,…