4. What are the similarities and differences between molarity and molality? What are the advantages and disadvantages of each unit?

Q: what is the molality of a solution made 100.1 g of NaCl and 440.0 of water?

A: To calculate the molality of the solution , we would use formula of molality.

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: 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: The density of toluene 1C7H82 is 0.867 g>mL, and the density of thiophene 1C4H4S2 is 1.065…

A:

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: a solution contains 25.5 of NaCl dissolved in sufficient water to give a total mass of 325.0 g. What…

A: Given Mass of NaCl = 25.5 g Total mass = 325.0 g = 0.325 kg molar mass of NaCl = 58.44 g/mol 1)…

Q: What is the molality of a solution that contains 4.220 grams of potassium sulfate and 250. g of…

A: Given: mass of K2SO4 = 4.220g mass of water = 250 g                       =0.250 Kg We know, Molar…

Q: What is the molality of a solution containing 70.0 g of HNO3 in 0.400 kg of water?

A: Molality is defined as the number of moles of solute in a solution dissolved per1 kg or 1000 g of…

Q: What is the molality of a solution consisting of 4.28 mL of carbon tetrachloride (CCI4; d = 1.59…

A: QUANTITATIVE UNITS: In chemistry, the entities which explain the concentration of a solution in…

Q: What is the molality of a solution that contains 128 g of CH3OH in 108 g of water?

A:

Q: In an experiment, a group of students dissolved 4.67 g of toluene in 67.8 g of cyclohexane. What was…

A:

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: n aqueous solution of concentrated nitric acid (HNO3) is 70.0% by mass. What is molality of this…

A: Molality is a property of a solution and is defined as the number of moles of solute per kilogram of…

Q: What mass of NaCl is dissolved in 100.g of water in a 0.050 molal solution?

A: Molality of given NaCl solution is 0.050 molal. It implies that 0.050 moles of NaCl is present in…

Q: What is the molality of a solution that contain75.3 g of KCl dissolved in 95.0 g of water?

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

Q: An aqueous solution of glucose (MM = 180.2 g/mol) has a molality of 14.81 m and a density of 1.20…

A: The given value of molality of Glucose = 14.81 mThe given value of density of glucose solution =…

Q: What is the molality of an alloy containing .03 g of silver and 4.75 g of iron?

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: What is the molality of a solution prepared by dissolving 23 g of ethanol in 200 g of water?

A: Mass of ethanol = 23 gMolar mass of ethanol =46 g/moleNo of moles of ethanol = Mass of ethanolMolar…

Q: A 1.25 M sugar (C12H22O11) solution has a density of 1.12 g/mL. What is the molality of this…

A:

Q: 7. What is the freezing point and boiling point of a solution that contains 19.0 g of glucose (molar…

A: Given : mass of glucose = 19.0 g              Mass of water = 200 g To calculate freezing point we…

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

A:

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

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

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: 11.66 A 0.944 M solution of glucose, C,H1206, in water has a den- sity of 1.0624 g/mL at 20 °C. What…

A: The question says the solution of glucose, that is glucose is the solute and water is the solvent.…

Q: What is the molality of 120 g of NaOH in 1000g of water?

A: Number of moles of NaOH is determined as follows,

Q: A 125.0 g aqueous solution contains 64 g ethanol. What is the mole fraction of glucose in the…

A: The given data contains, mass of solute = 64 g. mass of solution = 125 g.

Q: An aqueous solution of K2SO4 (174.27 g/mol) has a freezing point of –12.3°C and density of 1.05…

A: Given: Density of Potassium Sulphate solution= 1.05g/mL Molar mass = 174.27g/mol Freezing point =…

Q: 4) 4) What molality of pentane is obtained by dissolving 35.0 g pentane, C5H12, in 230.0 g hexane,…

A: 4. Given,  Mass of solute (C5H12) = 35 g  Molar mass of C5H12  = 72.15 g/mol Moles of C5H12 =…

Q: What molality of Na Clis required to lower the freezing point of water to -11.6 degrees C? Use 1.853…

A: Given : freezing point of solution = -11.6 oC Since freezing point of solution = freezing point of…

Q: What is the molality of a solution that contains 5.0 mols of NaOH in 4.00 Kg of solution?

A: Molality is given by number of moles per kg of solvent.

Q: Please help

A: The molality (m) of the solution is calculated as shown in equation (1) where m is the magnesium…

Q: Differentiate between molarity and molality of a solution.

A: Molarity Molality Molarity of a given solution is defined as the total number of moles of…

Q: How do you find molality given mass, volume, and temperature?  The question is: 13.120 g of sodium…

A: The value of temperature is used for finding the density of the water  since at 23.8 °C, density of…

Q: What mass of glucose (C6H1206) must dissolve in 2322 g of ethanol to make a 0.43 m solution?

A:

Q: What is the molality of a 10.3% by mass glucose (C6H12O6) solution? (The density of the solution is…

A: 10.3% by mass glucose solution means, in 100 gram(g) of solution we have 10.3g of glucose and 89.7g…

Q: What is the molality of a 10.5% by mass glucose (C6H12O6) solution? (The density of the solution is…

A: Molality (m) is defined as the number of moles of solute per kg of the solvent.…

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: 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: What is the molality of a solution containing 23 mol glucose and 4.7 kg of water?

A:

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: What is the molality of a 1.75M CaCl2(MM =111g/mol) solution? D(solution) = 1.27 g/mL

A:

Q: A solution was made by dissolving 10.000 g of NaCl (58.44 g/mol) in 150. mL (assume 1g/mL) of 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: A 0.396 molal glucose solution has density of 1.16 g/mL. What is the molarity of glucose in this…

A: Molality of glucose, m = 0.396 molal Density of glucose, d = 1.16 g/mL Molarity of glucose, M = ?…

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…