Sometimes crystallization does not occur, even after cooling the solution in the ice bath. Describe the probable cause of this problem and explain what steps might be taken to induce crystallization.

Q: The standard enthalpy of vaporization (H°vap) of ethylenediamine ((NH2CH2)2) is 44.0 kJ/mol. The…

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Q: The normal boiling point of acetone is 56.05 °C. At 25.00 °C, the vapour pressure of acetone is…

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Q: calculate the molar mass of the polymer. Take the density of the solution to be 0.886 g cm

A: Organic solvent  tetrahydrofuran (C4H8O) The osmotic pressure () can be calculated from the…

Q: A chemistry student is given 450. mL of a clear aqueous solution at 27.° C. He is told an unknown…

A: We have to find solubility of X at 27°C

Q: 302 301 300 299 298 297 (K) 296 295 294 293 292 0.2 0.4 0.6 0.8 XA According to the phase diagram…

A: According bto the phase diagram shown ,At X₂ = 0.2,

Q: Two solvents A and B are mixed together. if the molecular weight for A is 50.46 g/mol and the…

A: Use Dalton's law  to find the total pressure of the solution.P = PA + PBPA = 125 torr MA=50.46…

Q: Imagine a solution of two liquids in which the molecules interact more favorably than they do in the…

A: An actual vapor pressure greater than that predicted by Raoult's law is said to be a positive…

Q: The standard enthalpy of vaporization (H°vap) of ethylenediamine ((NH2CH2)2) is 44.0 kJ/mol. The…

A: Given: Heat of vaporization of ethylenediamine = 44.0 KJ/mol = 44000 J/mol…

Q: A solution contains 3.95 g of carbon disulfide (CS2) and 2.43 g of acetone (CH3COCH3). At 35 °C the…

A: The mole fraction of carbon disulphide is calculated as shown below.

Q: 27) Determine the vapour pressure of a solution at 25 °C that contains 76.6 g of glucose (C6H1206)…

A: The liquid molecules tend to convert into the vapour phase. In a closed container, the pressure of…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A: Given,  Mass of the compound (w) =  1.966 g Mass of cyclohexane (W) = 75.00 g Freezing point of…

Q: Find the vapor pressure at 25ºC of a water solution obtained by dissolving 2.397 moles of MgCl2(s)…

A: A solvent's vapor pressure in  solution is often less than pure solvent's vapor pressure. The…

Q: A chemistry student is given 550. mL of a clear aqueous solution at 37.° C. He is told an unknown…

A: Answer:Solubility refers to the ability of a substance (solute) to dissolve in a solvent (usually a…

Q: Enones (a,B-unsaturated carbonyls) act as electrophiles. Consider the enone starting material given…

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Q: 282 moles of ethylene glycol is added to 442 moles of water at room temperature. The vapor pressure…

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Q: A student was instructed to determine the molecular weight of an unknown white powder. He remembered…

A: The student may proceed through property of solution that is colligative property.and it can be used…

Q: Molal boiling-point-elevation constant (Kb) for pure water is 0.51°C/ m. A dilute solution of a…

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Q: A chemistry student is given 800. mL of a clear aqueous solution at 27.° C. He is told an unknown…

A: Answer:Amount of solid present in 1 L of solution is equal to its solubility in water.Given data:

Q: The vapor pressure of ethanol is 58.7 torr at 25 °C. Determine the vapor-pressure lowering, ΔP, of…

A: Given that, Number of moles of solute (sucrose) = 0.125 mol Number of moles of solvent (ethanol) =…

Q: Pure hexane has a vapor pressure of 0.186 atm at room temperature. Calculate the vapor pressure of…

A: Assuming the solute I2 is non volatile as its vapour pressure is not given. Given : vapour pressure…

Q: The vapor pressure of water at 30 °C is 4.24 kPa. Calculate the vapor pressure if 95.0 g of xylose,…

A: The question is based on the concept of colligative properties. We need to calculate vapour pressure…

Q: The vapor pressure of propanone is 15.40 kPa at 10C and 81.65 at 50C. Calculate the temperature at…

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Q: The normal boiling point of a certain liquid X is 120.30 °C, but when 10. g of iron (III) chloride…

A: Answer:Properties of a solution depend upon the number of solute particles present in the solution…

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.