The density of an aqueous solution containing 20.0 percent of ethanol by mass is 0.986 g/mL. (a) Calculate the molality of this solution. (b) Calculate the molarity of this solution. O

Q: Calculate the osmotic pressure (in torr) at 25°C of an aqueous solution containing 1 g/L of a…

A: Given data: *Density is 1g/mL. *Molar mass is 1.0g/L.  *Mass concentrationMR is 9×104g/mol.

Q: Enter your answer in the provided box. Calculate the molality of a 40.5 percent (by mass) aqueous…

A: The concentration of a substance can be measured in terms of mass by mass percentage. This…

Q: If 1.25 moles of NaOH is dissolved in 180g of water, what is the molality of the solution?

A:

Q: The percent by mass of acetonitrile (MM = 41.05 g/mol) in an aqueous solution is 11.5%. What is the…

A:

Q: A solution is prepared by dissolving 80.0 mg of potassium phosphate in 25 ml. of water. What is the…

A: Given, the mass of potassium phosphate =80.0 mg =0.08 gvolume of solution =25 mL we are asked to…

Q: Define the term Molality?

A: Molality is one of the many parameters that is used to express concentration of a solution.

Q: What is the molality of a solution prepared by dissolving 15.1 g of potassium nitrate in 250. g of…

A:

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

A: Given, mass of sample of a non electrolyte = 2.0 g Mass of water solvent = 100 g = 0.1 Kg Freezing…

Q: The percent by mass of methanol (MM = 32.04 g/mol) in an aqueous solution is 22.3%. What is the…

A: The molality of a given solution can be defined as the number of moles of the solute that are…

Q: An aqueous solution of molecular compound X freezes at -0.569°C. Calculate the molality of the…

A: Depression in freezing point (∆Tf) :-  When a non volatile solute is added to a pure solvent its…

Q: Given that an aqueous solution of glucose (C6H1206) has a density of 1.0173 kg/L, what is the molar…

A: Answer :-  The molality of Glucose solution = 0.253 M…

Q: Calculate the molality of a 46.2 percent (by mass) aqueous solution of sodium chloride.

A: Given percentage by mass of NaCl = 46.2℅ NaCl is the solute water is solvent

Q: What is the molality of a solution consisting of 9.265 mass % of C2H5OH dissolved in water?

A: Mass by mass % gives an idea about the amount of solute dissolved per 100 g of solution. Here mass %…

Q: Calculate the molality of a solution of 90 grams of glycerin (C3H8O3) in 200 grams of water

A: Molality means in a 1000 ml solvent how many moles of solute is present.

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: 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: Determine the required concentration (in percent by mass) for an aqueous ethylene glycol (C2H6O2)…

A: The elevation in boiling point of water is calculated by the formula,

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 percent by mass of ethanol (MM = 46.07 g/mol) in an aqueous solution is 23.7%. What is the…

A:

Q: A solution of aqueous substance(molar mass 90.8g/mol) has a molarity of 2.1M and density of…

A: Given   The molarity is 2.1 M. The molar mass of substance is 90.8 g/mol The density is 1.08 g/mL

Q: What is the density of a potassium chloride solution if its molarity is 0.5M and its molality is…

A: Given : Molarity = 0.5 M  Molality = 0.9 m

Q: The vapor pressure of diethyl ether (molar mass, 74.12 g mol-1)at 30°C is 0.8517 atm. Suppose 1.800…

A: The vapor pressure of diethyl ether (molar mass, 74.12 g mol-1)at 30°C is 0.8517 atm.  vapor…

Q: Explain the difference between molarity and molality. Underwhat circumstances would molality be a…

A: Molarity is the representation of the concentration of the solution and is defined as the number of…

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: A solution is prepared by dissolving 80.0 mg of potassium phosphate in 25 mL of water. What is the…

A: Given Mass of potassium phosphate = m = 80 mg = 0.08 g Molar mass of potassium phosphate= M =…

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

A:

Q: Calculate the freezing point of a solution made from 72.33 g of propane, C3H3, 44.1g/mol, dissolved…

A: Given: Mass of Propane=72.33 g Mass of solvent (Water)=0.250 kg

Q: How do we calculate the osmolality of ionic compounds?

A: To explain: How to calculate the Osmolality of the ionic compounds.

Q: What is the molarity and molality of concentrated HF if the solution is 48% HF by mass and has a…

A: Given percentage by mass HF = 48℅ density of solution = 1.17 g/ml

Q: An aqueous solution is 2.00 M urea. The density of the solution is 1.029 g/mL. What isthe molal…

A: Given data contains, Molarity of solution is 2.00 M. Density is 1.029 g/mL.

Q: 9.255 grams of C6H6 are dissolved in 161.8 grams of acetone, what is the molality of the solution?

A: Given mass of C6H6 (solute) = 9.255 g Mass of acetone (solvent) = 161.8 g

Q: An aqueous solution of 1.00 M ammonia (NH3) has a density of 0.900 g/mL. What is its concentration…

A: Aqueous 1 M ammonia solution has a density of 0.9 g/ml. To calculate molality, moles of solute and…

Q: If you prepare a solution by dissolving 42.59 g of sodium sulfate in 310.7 g of water, what is the…

A: Molality(m) is defined as number of moles of solute present in 1000g of the solvent. m=moles of…

Q: Enter your answer in the provided box. Calculate the molality of a 47.1 percent (by mass) aqueous…

A: Molality - It is defined as the number of moles of solute dissolved per kg of solvent . Molality =…

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: What is the molality of an aqueous solution of sucrose that is 12.5% sucrose by mass?

A:

Q: An aqueous solution of isopropyl alcohol, C3H8O, rubbing alcohol, has a mole fraction of alcohol…

A:

Q: A solution of aqueous substance(molar mass 90.8g/mol has a molarity of 2.1M and density of 1.08…

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: Glucose makes up about 0.10% by mass of human blood.Calculate this concentration in (a) ppm, (b)…

A: a.

Q: What is the molal concentration of a sugar solution that freezes at -0.93°C?

A: Given: The freezing point of the solution=  -0.93°C Cryoscopic constant of water= (Kf)= 1.853 K kg…

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

A: Medicine contains 12.5% ethanol by volume. It implies that 100 cm3 of ethanol solution has 12.5 cm3…

Q: when 7.94 g of xylene was added to 132.5 g of cyclohexane, the freezing point of the solution was…

A: In this question we used data of, Freezing point of cyclohexane= 6.50℃ Kf of cyclohexane= 20.0 ℃

Q: Question attached

A: Given: The mass of glucose is 80 g. The mass of the solvent is 2Kg. We know that the molecular…

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: Calculate the molality of a 42.4 percent (by mass) aqueous solution of sodium chloride

A: The mass percent concentration of sodium chloride solution is = 42.4 % The molality of the solution…

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: Calculate the molality of a 41.0 percent (by mass) aqueous solution of sodium chloride.

A: We are given that the mass percent of NaCl =41.0%

Q: What is the difference between molality and molarity?

A: The term molarity can be described as the ratio of the moles of the solute to the volume of the…

Q: A bottle of medicine contains 12.5% ethanol by volume. The density of ethanol (C2H3OH) is 0.789…

A: Since the % by volume is defined as the percentage of volume of solute present in the solution…

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.