A solution is made up by dissolving 15.0 g MgSO4· 7H2O in 140.0 g of water. What is the molality of MgSO, in this solution? %3D Molality =

Q: Calculate the molality of a 1.36 M aqueous solution of acetone ((CH3)2CO, 58.079g/mol) given that…

A: Given : Concentration of acetone = 1.36 M And density of solution = 0.9874 g/mL.

Q: An antifungal molecule has a molar mass of 2448 g/mol.  What osmotic pressure would result from a…

A: The relationship between osmotic pressure, P, solute concentration, and temperature for a solution…

Q: An aqueous sodium acetate, NaC, H,O2, solution is made by dissolving 0.280 mol NaC, H302 in 0.660 kg…

A: Moles of NaC2H3O2 = 0.280 moles Mass of water = 0.660 Kg

Q: An aqueous solution is 12.0% by mass silver nitrate, AgNO3, and has a density of 1.11 g/mL. The…

A: We have to find molality of solution

Q: Differentiate between molality and molarity of a solution. What is the effect of change in…

A: Concept introduction: Molarity: Number of moles of solute dissolved in per liter of solution.…

Q: What is the molality of LiCl in a solution that is 9.0% by mass LiCl and has a density of 1.00g/ml?

A: Given; % by mass of LiCl = 9.0% Density = 1.00g/ml Molality of LiCl solution = ? Note:  Molar mass…

Q: A 1.30 M solution of CaCl2 in water has a density of 1.11g/mL. What is the molality?

A: Given information: Molarity of CaCl2 solution = 1.30 M Density = 1.11 g/mL

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough water to make…

A: Number of moles of glucose (solute) is calculated as follows,

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

A:

Q: At 60 degrees Celsius, a 225-g sample of KNO3 is entirely dissolved in 250 g of water. The…

A: The maximum amount of solute that can be dissolved in a particular amount of solvent is known as…

Q: Calculate the molality of the solution.

A: If x mol of solute is present in 1000 gm solvent then the solution is said to be x molal and it can…

Q: The density of toluene, CHs, is 0.867 g/ml and the density of thiopene, CaH«S , is 1.065 g/mL. A…

A: Density of toluene = 0.867 g/ml Density of thiopene = 1.065 g/ml Volume of thiopene = 14.0 mL Volume…

Q: the percent by mass of glucose (MM=108.2g/mol) in an aqueous solution is 25.7% what is the molality…

A: Given, percentage by mass = 25.7 % Let the total mass of the mixture solution be 100 g Thus, mass of…

Q: What mass of glycerin (C3H8O3) must be dissolved in 165.7 g water to give a solution with a freezing…

A: Depression in freezing point is a colligative property. And colligative properties depend on the…

Q: aqueous solution is 21.9%. What is the molality of the ethanol solution?

A:

Q: An aqueous solution is made by dissolving 23.8 grams of sodium sulfide in 465 grams of water. The…

A: To compute the molality of sodium sulfide solution. Given that: Mass of sodium sulfide = 23.8 grams…

Q: The percent by mass of glucose (MM = 180.2 g/mol) in an aqueous solution is 22.5%. What is the…

A: Given: Percent by mass of glucose = 22.5 %. Assuming 100 g of the solution.

Q: What is the formula of molality? a. moles solute / L of solution O b. moles of solute / kg of…

A:

Q: The percent by mass of methanol (MM = 32.04 g/mol) in an aqueous solution is 92.9%. What is the…

A: 1) Percentage by mass=92.9% 2) Molecular weight of methanol (MM=32.04 g/mol)

Q: A solution contains 92.2g of methanol, CH3OH, dissolved in sufficient water to give a  mass of…

A: The molality of a solution is calculated by the formula: Molality m=mol of solutemass of solvent kg

Q: An aqueous solution of ethanol (molar mass = 46.07 g/mol) has a molality of 12.15 m and a density of…

A: Answer:- This question is answered by using the simple cocept of calculation of molarity using the…

Q: An aqueous potassium chloride, KCl, solution is made by dissolving 0.305 mol KCl in 575.0 g of…

A:

Q: If an aqueous solution is very dilute, will its molality be greater than its polarity, nearly the…

A: If an aqueous solution is very dilute, will its molality be Greater than its polarity, Nearly the…

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: An aqueous solution of hydrochloric acid contains 28% HCl (36.45 g/mol) by mass. What is the molal…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: A 6.84 m urea (molar mass = 60.0 g/mol) aqueous solution has a density of 1.3 g/mL. What is the…

A: Given, 6.84 m urea density of 1.3 g/mL

Q: An aqueous solution of fructose (MM = 180.2 g/mol) has a molality of 4.87 m and a density of 1.30…

A: Molality of a solution is the number of moles of a solute in 1 kg of a solvent. Here molality of…

Q: Molality (m) Calculate the molality of a solution that contains 27.5 g barium chloride (BaCl2) in…

A: Given, mass of barium chloride =27.5 gramvolume of water =100 mL we are asked to calculate the…

Q: Calculate the molal concentration , m of a solution that contains 20g of Magnesium hydroxide Mg(OH)2…

A:

Q: an aqueous solution of ethanol, C2H5OH, is 19% ethanol by mass and has a density of 0.97 g ml ^-1.…

A: Assuming 1 L i.e 1000 mL of solution. Given : Mass percent of ethanol = 19 % And density of solution…

Q: 0.02 molal solution of potassium iodide freezes at -0.25OC. What is the percentage dissociation?

A:

Q: A solution was prepared by dissolving 12.00g of a non-dissociating solute in 40.00g of pure water.…

A: The depression in freezing point of the solution on addition of a solute can be expressed as…

Q: An aqueous solution of hydrochloric acid contains 36% HCl by mass. Calculate the molality of HCl in…

A: Molality concept is used to express the concentration of the solution. It is also named molal…

Q: What is the difference between molarity and molality ? Which one uses mass, and why might that be…

A: Concentration of solution :- The amount of solute present in a solution is known as concentration of…

Q: An aqueous solution contains 5.8% NaCl by mass. Calculate the molality of the solution

A: Given, an aqueous solution contains 5.8% NaCl by mass. This means that in 100 g of solution has 5.8…

Q: Lithium chloride has a lattice energy of 861 kj/mol, and a solvation energy of -898 kj/mol. When…

A: When the lithium chloride solid is dissolved in water, energy will be required to break the lattice…

Q: An aqueous solution of glucose (MM = 180.2 g/mol) has a molality of 1.81 m and a density of 1.20…

A: Molarity is defined as the amount of the substance in a certain volume of solution or it is also…

Q: What is the molality of the methanol solution?

A: Before knowing this one must be know the concept of molality 1000 gm of solvent contains how much…

Q: The concentrated sulfuric acid that we use in the laboratory is 98.0% H SO, by mass. Calculate the…

A:

Q: What is the molality of a solution made by dissolving 92g ethanol (C2H6O) in 200g water?

A:

Q: You have a solution which is 45.7% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A: Solution Molality may be a property of an answer and is outlined because the variety of moles of…

Q: An aqueous solution is 1.00% by mass ethanol, CH3CH2OH, and has a density of 0.996 g/mL. The…

A: Given, an aqueous solution is 1.00 % by mass ethanol.has a density of 0.996 g/mLwe are asked to…

Q: A bottle of wine contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3.…

A: Given  a bottle of wine contains 12.5 % ethanol by volume volume of wine bottle = 100 ml = 100 cm3…

Q: The molality of a sugar solution (C6H1206) is 2.94 m. How many total ions does C6H1206 break into…

A:

Q: calculate the molality. (d) 0.372 g of histamine, C5H9N, in 125 g of chloroform, CHCl3

A: Note - Since the chemical formula given for histamine in the question is incorrect, we will consider…