Assume that the solubility of CaCl2 at this temperature is 70.1 g CaCl2/100.0 g of H2O and that the van't Hoff factor for a saturated solution of CaCl2is i = 2.5.The Kf for water is 1.86°C/m What is the minimum amount of CaCl2 that would be required to melt ice on sidewalks at -36 degrees Celcius? Use 100.0 g of water as the amount of solvent. _________ grams

Q: A ‍aluminum sulfide solution at 23∘C has an osmotic pressure of 19 atm and a density of 1.218 g/mL.…

A:

Q: hen 59.9 g of glycine (C₂H5NO₂) are dissolved in 850. g of a certain mystery liquid X, the freezing…

A: Freezing-point depression is the decrease of the freezing point of a solvent on addition of a…

Q: You dissolve a 30.0 g mixture of glucose (C₆H₁₂O₆) and NaCl in 1.00 kg water. The freezing point of…

A: Given that, depression of the freezing point of this solution = ∆Tf = 0.639 °C and molal depression…

Q: Pentane (C, H12) and hexane (C,H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A: We have given that at 25°C P°(C5H12) = 511 torr P°(C6H14) = 150 torr Volume of Pentane = 25 mL…

Q: Suppose that you add 24.3 g of an unknown molecular compound to 0.250 kg of benzene, which has a…

A: Given, mass of unknown molecular compound=24.3gm mass of benzene=0.250 Kg Kf of Benzene=5.12°C/m…

Q: When 115. g of glycine (C₂H5NO₂) are dissolved in 950. g of a certain mystery liquid X, the freezing…

A: By help of Following formula we can calculate the mass of sodium chloride NH4Cl in the solution -∆Tf…

Q: Calculate the freezing point of a solution of 1.95 g of naphthalene (C10H8) in 15.50 g of benzene.…

A: This is a depression of freezing point or lowering of freezing point problem. This lowering of the…

Q: What is the freezing point (in K) of a solution made by dissolving 17.013g of CCl4 in 130.0 g of…

A:

Q: The measured freezing point for a 1.50 m Mg(OH)2 aqueous solution was determined to be –7.95ºC. What…

A: Freezing point depression is a phenomenon in which the freezing point of a solvent is lowered by the…

Q: CaCl2 is often used to melt ice on sidewalks. Could CaCl2 melt ice at –20°C? Assume that the…

A: YES , CaCl2 melt ice at –20°C? Assume that the solubility of CaCl2 at this temperature is 70.1 g…

Q: When 32.4 g of a certain molecular compound X are dissolved in 65.0 g of benzonitrile (C,H,CN), the…

A: we have to calculate the molar mass of X

Q: 1) What is the molality of the solution with a boiling point elevation of 2.56 degrees Celsius? The…

A:

Q: At 20°C, the vapor pressure of ethanol is 45 torr and the vapor pressure of methanol is 92 torr.…

A:

Q: Determine the Van't Hoff factor for calcium bicarbonate (Ca(HCO3)2 MM = 162 g/mol) if a solution…

A: Mass of calcium bicarbonate = 35.7 gMolar mass of calcium bicarbonate = 162 g/molThe formula used…

Q: Biphenyl, C,H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C,H,. At 25 °C,…

A:

Q: When 44.7 g of urea (CH4N₂O) are dissolved in 850. g of a certain mystery liquid X, the freezing…

A: The values are provided in questionmass of urea m = 44.7 g mass of solvent = 850 gmass of solvent =…

Q: Calculate the vapor pressure (in torr) of a solution prepared by dissolving 0.500 mol of a…

A:

Q: If 0.219 g of a solute is dissolved into 7.832 g of t-butanol (normal freezing point is 25C), and…

A: If 0.219 g of a solute is dissolved into 7.832 g of t-butanol (normal freezing point is 25C), and…

Q: The solubility of a salt at 50•c is 64g salt per 100 of water. Which solution below would be…

A: Given the solubility of the salt at 50 oC = 64 g salt / 100 g water A solution is saturated when the…

Q: The boiling point of a solution of 2.056 moles of an electrolyte dissolved in 1399 g of benzene is…

A:

Q: Calculate the vapor pressure for a 35.2% NaCl (m/m)% aqueous solution at 45°C. The vapor pressure of…

A: 35.2% NaCl (m/m) aqueous solution means 35.2 g NaCl present in 64.8 g water. Mass of water, m1 =…

Q: 15. What is the freezing point for an aqueous solution of KBr that was made from dissolving 25.0…

A:

Q: An ideal solution is made by mixing 50.0 g of acetylaldehyde (IUPAC name = 1-ethanal) and 50.0 g of…

A: Mole fraction of acetaldehyde and pentane can be calculated as follows: No. of moles of CH3CHO =…

Q: Octane (C₈H₁₈) has a vapor pressure of 14.3 torr and a density of 0.703 g/mL. Benzene (C₆H₆) has a…

A: The objective of this question is to calculate the vapor pressure of a solution containing octane…

Q: When 12.7g of urea CH4N2O are dissolved in 600.g of a certain mystery liquid X, the freezing point…

A:

Q: At a particular temperature, the solubility of H₂ in water is 0.140 M when the partial pressure is…

A: According to Henry's law we calculate solubility of gas in liquid. S = KHp Where S = solubility KH =…

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: Determine the freezing point depression of a solution that contains 26.8 g of glycerin (C3H8O3,…

A:

Q: What volume of water, in mL, is needed to dissolve 0.72 mg of hydrogen gas (2.01588 g/mol) when the…

A: Given: Henry's constant = 7.8×10-4 M/atm. Partial pressure = 1.6 atm

Q: . A 0.137 m solution of sodium ferrocyanide (NaFe(CN)6.10H20) in water has a freezing point…

A: Given-> Molality = 0.137 m Freezing point depression = 0.755 °C Kf = 1.86 °C/m

Q: You dissolve a 30.0 g mixture of glucose (C₆H₁₂O₆) and NaCl in 1.00 kg water. The freezing point of…

A: Let the total number of moles of glucose and NaCl be "n". Since they were dissolved in 1 kg of…

Q: True or false? The molatlity of an aqueous NaCl solution that freezes at -1C is equal to the…

A:

Q: When 112. g of glycine (C₂H₂NO₂) are dissolved in 1500. g of a certain mystery liquid X, the…

A: To calculate : Mass of sodium chloride dissolved = ?

Q: solution is prepared disolving 2.00g of an substance in 10.0mL in water at 25°C. The freezing point…

A: Given- Weight of substance =2.00 gram  Volume of water =10.0 mL  T1=25°C T2= -0.350°C  Kf of…

Q: Biphenyl, C12H10,C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6.C6H6.…

A: it can be find out by Roults law .

Q: At a particular temperature, the solubility of H₂ in water is 0.140 M when the partial pressure is…

A: Henry's law :-  According to this , the solubility of a gas in liquid at a given temperature  is…

Q: You have a aqueous solution of NaCl that has a freezing point of -6.45 °C. Assuming a van't Hoff…

A: ΔTf = Kf . i . m Where, ΔTf = freezing point depression; Kf = cryoscopic constant; i = Van't Hoff…

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.