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

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: The percent by mass of phenol (MM = 94.11 g/mol) in an aqueous solution is 16.3%. What is the…

A: Given, The percent by mass of phenol in an aqueous solution is 16.3% Molar mass of phenol = 94.11…

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

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Q: Calculate the molality of a 20.0% by mass ammonium sulfate (NH),SO solution. The density of the…

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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: Calculate the molality of a solution containing 119g of glucose (C6H1206) in 2322 g of ethanol.

A: • The values provided in the question are:-    i) Mass of a glucose (solute), W2 = 119 g  ii) Molar…

Q: What is the mole fraction of solute A (molar mass = 36.01 g/mol) in a 7.920 mol/kg aqueous solution…

A: Mole fraction (X) is defined as the ratio of moles of each component to the sum of the moles of all…

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: 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: A bottle of phosphoric acid is labeled "85.0% H3PO4 by mass; density = 1.689 g/ml."  Express  the…

A: Note- As the question contains multiple subparts, we will solve the first one for you. To get the…

Q: An aqueous solution of hydrochloric acid contains 36% HCl by mass. (a) Calculate the mole fraction…

A: Given that mass percent of HCl is 36%. Assuming the total mass of solution as 100 g, 36 g of HCl…

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: Calculate the molality of a solution containing 635 mg of Calcium nitrate dissolved in 5.50 mL of…

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Q: . 190 g of CuSO4 are placed in 3500 g of water. Determine the molality.

A: Given Data :  1. Mass of CuSO4 ( Solute) = 190 g  2. Mass of Water ( solvent) = 3500 g…

Q: Calculate the molality of a solution formed by disolving 39.8 g of lithium in 500mL of water

A: Calculate the number of moles of lithium:

Q: The Molarity of the solution The molality of the solution The mole fraction of water

A:

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: determine the molarity of a solution form by dissolving 468 mg mgl2 in enough water to yield 50.0ml…

A: Molar mass of MgI2 = 278.1139 g/mol.  Number of moles of magnesium iodide is calculated as,

Q: Calculate the molality of a 42.3 percent (by mass) aqueous solution of sodium chloride.

A: Percent by mass means mass of solute in 100 g solvent.

Q: Define the term molarity,molality, formality and normality?

A:

Q: molality

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Q: Calculate the molality of a 35.4 percent by mass aqueous solution of phosphoric acid (H3PO4).

A: Molality- Molality is defined as number of moles solute present in 1 kg of solvent. It is…

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: Calculate the molality of a solution containing 5.81 g of NaCl (58.44 g/mol) in 51.9 g of water.

A: Given:Mass of sodium chloride= 5.81 gMolar mass of sodium chloride= 58.44 g/molMass of water= 51.9 g

Q: How many parts per million of solute is present in a solution that is 0.300% by mass?

A:

Q: The density of an aqueous solution  containing 10%(w/w) of ethanol is 0.985g/ml. Calculate the…

A: Given, Density of ethanol solution = 0.985 g/mL % of ethanol in the solution = 10 % (w/w)

Q: Which statement below best explains why the lowering of the vapor pressure by a nonvolatile solute…

A: The lowering of the vapor pressure by a nonvolatile solute can be discussed,

Q: Calculate the molality of  the following solution: 25 g of I2 in 125 g of ethanol, C2H5OH

A: The molality of the solution can be calculated as follows:

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

A: a ) Assuming we have 100 g of solution  Hence the mass of NaOCl in it = % by mass X mass of solution…

Q: 1. Calculate the mass (in grams) of magnesium chloride (MgCl) that would be needed to prepare 250 ml…

A: Given, Volume of the solution = 250 ml Density of the solution = 1.1 g/ml Solution percent = 20 %…

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: What is the molality of a 10.9% by mass glucose solution? (The density of the solution is 1.04g/mL)

A: It is given that: Mass percent of glucose by mass = 10.9 %

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

A:

Q: A solution of 1,921 g of nicotine in 48.92 g of water has a freezing point of -0.450 ° C. Determine…

A: Given: The mass of nicotine in the solution = 1.921 g The mass of water = 48.92 g The freezing point…

Q: An aqueous solution contains 41.5 g of HCI by mass. Calculate the molality of the solution.

A: Since no solvent has been mentioned in the question, we take it to be H2O (water).

Q: Calculate the molality of a 41.8 percent (by mass) aqueous solution of sodium chloride. m

A: The formula for mass percentage is as follow Mass percentage=Mass of componentTotal mass of…

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: 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: The density of an aqueous solution containing 20.0 percent of ethanol by mass is 0.986 g/mL. (a)…

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Q: What is the molality of a 60.5% by mass of nitric acid (HNO3) solution?

A:

Q: What is the molality of a solution with a percent mass of 33.5% of sodium perchlorate?

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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: Calculate the molality of a copper (ll) nitrate solution which contains 35.0 g of copper (ll)…

A: We have given that  Mass of Copper nitrate = 35.0g Molar mass of Copper nitrate = 187.56g/mole…

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…