The molality of an aqueous NaCl solution that freezes at -1° C is equal to the molality of another solution of NaCl that boils at 101° C.   true or false?

Q: Determine the molality of an aqueous solution prepared by dissolving 4.75 g of LiCl in 247 g of H…

A: Molality is defined as the number of moles of solute present in 1 Kg of solvent. It is numerically…

Q: Determine the molal concentration of a sugar solution in water that has a freezing point of –2.1°C.…

A: Given information,    Freezing point = –2.1°C    Value of Kf = 1.86°C/m for water

Q: 2) What is the molality of solution that contains 50 g ethanol (C,H,OH) in 325 g water?

A:

Q: The freezing point of pure benzene (C₆H₆) is 5.49 °C. The freezing point of a solution made using…

A: Pure benzene (solvent) freezing point = Tp = 5.49 °C Freezing point of Solution = Ts = -13.0 °C Kf…

Q: Don't use hand raiting please

A: Given: [CH3​OH]=20.3M;d=0.858g/mol;MCH3​OH​=32.05g/mol;m=???mol/kgStep 1: Analyze the given…

Q: Determine the freezing point of an aqueous solution containing 2.9 kg of glucose, 180.16 g/mol)…

A: Given : Mass of water = 6.5 Kg  And mass of glucose = 2.9 Kg = 2900 g…

Q: A student dissolves 7.9 g of resveratrol (C4H120,) in 425. mL of a solvent with a density of 0.90…

A: First we will calculate number of moles of resveratrol. Then calculate molarity and molality of…

Q: A solution made by dissolving 150.0 g of an unknown compound in 330.0 mL of benzene to make a…

A: The properties of solution that depend only on the concentration of the solute and is independent of…

Q: 10 A 3.40-g sample of a mixture of naphthalene (C, H.) and pyrene (CH) is dissolved in 35.0 g…

A: Given: The mass of the mixture of naphthalene and pyrene = 3.40 g The mass of benzene (solvent) =…

Q: What is the molality of a solution of calcium chloride that has a freezing point of -4.56 degrees…

A: Given,Freezing point of calcium chloride solution = - 4.56 °CKf = 1.86 °C kgmolRequired,…

Q: Calculate the molality of NH3 (MM = 17.03 g/mol) in household ammonia, which is an 8.00% solution by…

A:

Q: A student dissolves 9.0 g of resveratrol (C„H,,0,) in 225. mL of a solvent with a density of 0.86…

A: Given: Mass of solute i.e. C14H12O3 = 9.0 g. Density of solvent = 0.86 g/mL. And volume of final…

Q: A solution made by dissolving 150.0 g of an unknown compound in 425.0 mL of benzene to make a…

A: The volume of benzene = 425 mL. Density of benzene = 0.877 g/mL The mass of the solvent =  425 g/mL…

Q: When 552. g of benzamide (C,H,NO) are dissolved in 1000. g of a certain mystery liquid X, the…

A: Step 1:Step 2: Step 3:Step 4:

Q: Calculate the molarity and molality of the student's solution. cianificant digits

A:

Q: When 20.4 g of urea (CH₂N₂O) are dissolved in 500. g of a certain mystery liquid X, the freezing…

A: First of all we calculate the Kf of mystery liquid X using urea.For this purpose we use Following…

Q: What is the osmotic pressure of a 0.431 M solution of sodium phosphate (Na₃PO₄) in water at a…

A: Osmotic pressure is the pressure developed on th solution surface due to solute and the vapour…

Q: A solution of 750 g of henzene (CH) and 75.0 g of toluene (C,Hg) has a total vapor pressure of 80.9…

A:

Q: The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte…

A:

Q: The molar mass of an unknown compound must be determined, using a solvent that has a freezing point…

A: The solution freezing point will be decreased due to the availability of the species solute which…

Q: When 28.2 g of urea (CH4N₂O) are dissolved in 1150. g of a certain mystery liquid X, the freezing…

A: Given,mass of urea ( CH4N2O ) = 28.2 gmass of solvent 'X' = 1150. gchange in freezing point of urea…

Q: A student dissolves 19. g of glucose (C6H₁206) in 350. mL of a solvent with a density of 0.98 g/mL.…

A: Mass of solute (glucose) = 19. gDensity = 0.98 g/mLVolume of solvent = 350. mL = 0.35 LMolarity =…

Q: A student made a solution by mixing 28.20 g of an unknown substance with 500.0 g of benzene (C6H63,…

A: Depression in freezing point (∆Tf) solvent will calculated as:-∆Tf= kf×W2W1×M2Where∆Tf=Depression in…

Q: A student dissolves 3.4 g of biphenyl (C₁2H10) in 375. mL of a solvent with a density of 0.85 g/mL.…

A:

Q: Determine the freezing point of a solution that contains 62.8 g of urea (CH 4N 2O) dissolved in 275…

A: freezing point of a solution is - 7.08 °C  .

Q: What is the molality of a solution made by dissolving 19.9 grams of NH 4Br in 910 grams of water?…

A: Given mass of NH4Br = 19.9 g  Given mass of H2O = 910 g  Here , solute is NH4Br and solvent is H2O.…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: A solution made by dissolving 150.0 g of an unknown compound in 375.0 mL of benzene to make a…

A:

Q: A student dissolves 14. g of stilbene (CH12) in 450. mL of a solvent with a density of 1.09 g/mL.…

A: Molarity: The mole of the solute dissolved in one liter of the solution is known as the molarity of…

Q: When 73.6 g of glycine C2H5NO2 are dissolved in 1250. g of a certain mystery liquid X, the freezing…

A: Answer: Depression in freezing point of a solution containing a non-volatile solute is:…

Q: When 361. g of urea (CH₂N₂O) are dissolved in 1350. g of a certain mystery liquid X, the freezing…

A: According to Raoult's law, the depression in the freezing point of a solution:Here, i = van't Hoff…

Q: Calculate the molality of a solution formed by adding 3.159 g of methanol (CH3OH) to 100.00 mL of…

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: Ethylene glycol, HOCH2CH20H, is a common automobile antifreeze. It is water soluble and fairly…

A: Mass of ethylene glycol = 759g Mass of water = 4868g Kf of water = 1.86°C/molal We need to find the…

Q: Calculate the van't Hoff factor for iron(III) chloride

A: Since, nitrobenzene C2H5NO2 is non electrolyte it will be having vantoff factor 1  Now  Since mass…

Q: When 5.71g of naphthalene is added to 152g of benzene the solution freezes at 3.98 degrees Celsius.…

A: Recall the data from the question, mass of naphthalene=5.71 g mass of solvent=152 g  Solvent in…

Q: Camphor is a white solid that melts at 179.50°C. It has been used to determine the molecular weights…

A: given mass of unknown compound (solute) = 1.08 g Kf  = 39.7°C/m Mass of solvent = 73.6 g = 73.6×10-3…

Q: A student dissolves 1.3 g of resveratrol (C₁4H₁203) in 275. mL of a solvent with a density of 1.18…

A: Answer: Molar concentration of solution is always equal to the ratio of number of moles and volume…

Q: Calculate the molality of each of the following aqueous solutions. Part 1 of 2 2.80 M NaCl (density…

A:

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.