Sodium hydroxide is available commercially as 50.0% by weight aqueous solution. Calculate the molality of this sodium hydroxide solution.

Q: Solution of ethanol in water was found to be 35.9% ethanol by mass. What is the molarity and  mole…

A: We have to predict the Molarity and mole fraction of ethanol.

Q: Determine the molality of solution consisting of a 360g acetic acid (CH3COOH) and 600g of water.

A: We are given 360g acetic acid in 600g of water, and we need to find molality of this solution.

Q: Calculate the molalities of the following aqueous solutions: (a) 1.016 M sugar (C12H22011) solution…

A:

Q: Reagent nitric acid is 70.40% HNO3 by mass and its molarity is 16M. Calculate following: a. density…

A: Given :

Q: The boiling point of a 1.50 m (molal; moles solute/kg solvent) aqueous solution of LiI would be…

A: The elevation in boiling point is calculated as ∆Tb = i × Kb × m Here, ∆Tb = elevation in boiling…

Q: Illustrate the common ways of expressing the concentration of a solute in a solvent: mass…

A: A dilute solution means solute is present in the least quantity. It refers to the quantity of solute…

Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute 1.29 30.0

A: Given that:  Density of KOH solution = 1.29g/ml  % by mass of KOH = 30.0  Molar mass of KOH =…

Q: Calculate the molality of a 1.76M aqueous solution. The solute has a molar mass of 120.5g/mol, and…

A:

Q: Can you calculate the percent composition by mass of a solution given only the molality of the…

A: Molarity is defined as number of moles of solute dissolved per litre of solution.

Q: The density of a solution having 98 grams of Sulphuric acid(H2SO4) in 1 liter solution is 1.098…

A: Molarity of the solution is 84.74

Q: Perchloric acid (HClO4, MW = 100.458) is commercially available as a 72.5% solution with a density…

A: The question is based on the concept of mass percentage.   amount of substance present in hundred…

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A: Molality is defined as number of moles of solute per kg of solvent.

Q: Determine the molality of an aqueous solution that is4.5% urea by mass.( The molar mass of urea is…

A: molality= weight of solute/molecular weight                             ×1000/weight of solvent m=…

Q: A hospital grade Comet liquid cleaner solution (see picture below) is 1.45% by mass sodium…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A solution of:...is boiled SOLVENT: Water (H2O) - 100mL or 100.00g SOLUTE: Salt (NaCl) - 11.60g…

A:

Q: A student added 10 g (0.25 mol) of sodium hydroxide to 40 cm3 of water to make a concentrated…

A: The enthalpy of solution is the amount of heat evolved or absorbed by the solution when the solute…

Q: A commercial bleach solution contains 3.62 mass percent NaOCl in water. Calculate the molality of…

A: The mass of the solute present in 100g of the solution is called the mass percentage of the…

Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute

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Q: Calculate the freezing temperature of the following solution of 0.50 M sodium chloride (an ionic…

A: Introduction: Depression in Freezing point:                                The phenomenon by which…

Q: The molality of an aqueous solution of sugar (C12H22O11) is 2.58 m. Calculate the mole fractions of…

A: 2.58 m - 2.58 of sugar present in 1 kg water. Molality = moles of soluteweight of solvent in kg 2.58…

Q: The mole fraction of ethanol in water is 0.3 calculate the molality os solution and the mass percent…

A: mole fraction of ethanol=0.3 therefore mole fraction of water=1-0.3=0.7

Q: The lattice enthalpy of magnesium iodide, MgI2, is -2505 kJ/mol and it's enthalpy of solution is…

A: Given:  Lattice enthalpy, L =  -2505kJ/mol Enthalpy of solution = -213.3 kJ /mol

Q: The molality (moles per kg of water) of a 1.000 M solution of silver nitrate (FW 169.9 amu; AgNO3)…

A: The density of solution, d = 1.140 g/mL Molarity of solution, M = 1 M Molar mass of solute, Ms =…

Q: A solution is prepared by mixing 1.00 g of ethanol (C2H5OH) with 100.00 g of water to give a final…

A: In order to calculate the molarity and the mole fraction we first write down the given data: Mass of…

Q: The four most common ways to describe solution composition are mass percent, mole fraction,…

A: The terms molarity, molality, mass percent and mole fraction has to be defined in terms of…

Q: The molality of an aqueous solution of sugar (C12H22O11) is 1.75m. Calculate the mole fractions of…

A: Given, molality of the sugar (C12H22O11) solution = 1.75 m = 1.75 mol/kg Mole fractions of sugar and…

Q: calculate the molality and the mass percent of the solute in a solution of toluene (C7H8) and…

A: The relation between molality and mole fraction of solute is shown below:

Q: A 9.386 M aqueous solution of sulfuric acid has a density of 1.5091 g cm-3. Calculate the molality,…

A: Molality is equal to the number of moles of solute dissolved per kg of solvent. It is denoted by m.…

Q: A solution is prepared by dissolving 10g of sucrose (MM: 343g) in 50 g of water. Determine the…

A: Molarity: It is moles of solute present in 1L or 1000 mL of solution. The unit is mol/L. Molality:…

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 18.5…

A: Given -    vapor pressure of =18.5 torr    P° of benzene is = 26.5 torr    P = Npo  ( Raoult's…

Q: The mole fraction of copper (II) nitrate in an aqueous copper (II) nitrate solution solution is…

A: The aqueous copper (II) nitrate solution has water and copper (II) nitrate with it. The number of…

Q: Mole fraction of Molarity Molality % by Mass ppm solute

A:

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A: Molality is defined as No.of moles of solute devided by mass of solvent in Kg .

Q: A solution of hydrochloric acid in water is 38.00% hydrochloric acid by mass. Its density is 1.1886…

A: Given information: Mass percent of hydrochloric acid = 38.00 % Density = 1.1886 g cm-3

Q: Why is it necessary to express the concentration of solute in units of molality rather than…

A: Given : We have to tell why there is need to tell mass of solute in terms of molality .

Q: Calculate the molalities of the following aqueous solutions: (a) 1.21 M sugar (C12H22011) solution…

A: Molality = no. of moles of solute/Mass of solvent (kg) Now, we have to calculate 'no. of moles of…

Q: An aqueous solution of Hydrofluoric Acid is 12.5 molal with respect to HF and has a density  of…

A: Since you have posted a question with multiple sub-parts, we will solve first three subpartsfor you.…

Q: A solution is prepared by dissolving 49.3 g of KBr (Molar mass = 119 g/mol) in enough water to form…

A: Answer: Given data: mKBr=49.3gMKBr=119g/molVsolution=473mLdsolution=1.12g/mL

Q: Sulfuric acid in water dissociates completely into H+ and HSO4 - ions. The HSO4 - ion dissociates to…

A: Given, molality (m) of H2SO4 = 0.1000 m            freezing point of solution = 272.76 K = (272.76 -…

Q: The partial molar volume of water in a 1.000 molal sodium chloride/water solution at 25°C is 18.042…

A: Given data: The partial molar volume of water = 18.042 cm3/mol. The molality of sodium…

Q: If the mole fraction of water in NaCl aqueous solution is 0.75, calculate the molality of NaCl in…

A: Answer: Molality of a solute in a solution is the ratio of its number of moles with the mass of…

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A: Molality is defined as no.of moles of solute devided by mass of solvent in Kg.

Q: The molal elevation constant for water is 0.513 °C kg mol–. When 0.8 mole of sugar is dissolved in…

A:

Q: A solution of an unknown nonvolatile nonelectrolyte was prepared by dissolving 0.250 g in 40.0 g…

A:

Q: An aqueous solution contains 5.0% NaCl by mass. Calculate the molality and mole fraction of the…

A: 5%  NaCl by mass means 5 g of solute is dissolved in 100 g of solution. Mass of solute (NaCl) = 5g…

Q: The freezing point of a 0.01 m aqueous solution of a nonvolatile electrolyte is -0.0720C. What is…

A: The freezing point, Tf , of 0.01 m solution is -0.072o C. As the solution is aqueous, that is the…

Q: Calculate the mole fraction of sodium chloride in a solution that is 10.5% by mass (The density of…

A:

Q: The organic compounds chloroform and dichloromethane form ideal solutions when mixed together; at 25…

A: The solution is as follows :