At 20.0°C, the vapor pressure of ethanol is 45 torr and the vapor pressure of methanol is 92 torr. What is the vapor pressure at 20.0°C of a solution prepared by mixing 26.0 g of methanol and 72.0 g of ethanol?

Q: A solution is made by mixing 55.9 g acetone (CH 3 COCH 3 ) and 55.9 g methanol (CH 3 OH). What is…

A: Dalton's law of partial pressure:- This law states that total pressure of the mixture of gases…

Q: The vapor pressure of pure water at 20 ºC is 17.54 torr.  What will the vapor pressure of water be…

A: Given, VAPOUR pressure of pure water , P° = 17.54 torr  Mole fraction , X = 0.476

Q: An aqueous solution containing glucose has a vapor pressure of 20,1 torr at 25°C. What would be the…

A:

Q: Dibutyl phthalate, C16H2204 (molar mass 278.3 g mol4), is an oil sometimes used to soften plastic…

A: Given: Molar mass of C16H22O4 = 278.3 g/mol. Mass of C16H22O4 = 21.2 g. Mass of pentane = 58.8 g…

Q: A solution is made using 10.5 percent by mass CH₂Cl₂ in CHCl₃. At 30 °C, the vapor pressure of pure…

A: •Here we have to calculate boiling point of solution. => Given:- 1) Boiling point of pure CHCl3 =…

Q: What are the mole fractions for octane and propane in a solution that has a total vapor pressure of…

A: sing the Raoult's law you can find the mole fraction of each of the following component. As per this…

Q: The vapor pressure of a pure water at 26.0°C is 25.21 torr. The vapor pressure of a solution which…

A: According to the Raoult's law for dilute solutions the relative lowering of vapor pressure is equal…

Q: An aqueous solution containing glucose has a vapor pressure of 19.0 torr at 25°C. What would be the…

A:

Q: A solution is prepared by adding 2.50 mol glucose, which is not volatile, to 4.50 mol water. What is…

A: Given,moles of glucose = 2.50 molmoles of water = 4.50 molvapor pressure of pure water at 25.0 oC =…

Q: A solution contains 3.85 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling points of…

A: We have to calculate the molar mass of hydrocarbon.

Q: A solution contains naphthalene (C10H8 MM: 128.164 g/mol) dissolved in hexane (C6H14 MM: 86.172…

A: Given, A solution contains naphthalene (C10H8 MM: 128.164 g/mol) dissolved in hexane (C6H14 MM:…

Q: Consider two solutions, one formed by adding 10 g of glucose 1C6H12O62 to 1 L of water and the other…

A: For the first solution, to calculate the vapor pressure, we need to calculate the mole fraction of…

Q: Calculate the vapor pressure of a solution of 34.0 g of glyc-erol (C₃H₈O₃) in 500.0 g of water at…

A:

Q: A fully miscible solution is formed between two liquids A and B, so that the mole fraction of A is…

A: For liquid phase:partial pressure of component = mole fraction of that component X vapor pressure of…

Q: A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25°C. What is the mole…

A: a) According to the Raoult's Law, the vapour pressure of a non volatile solute solution is given by…

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

A:

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: A sample of 10.00g of vasopressin is dissolved in 50.00g of naphthalene (kf=6.94 degrees Celsius).…

A: Freezing point depression can be calculated using the following equation.

Q: A solution contains 180.3g BaBr2(297.1 gmol) dissolved in 1066 g of water. What is the vapor…

A: There are various colligative properties which depends on the amount of the solute particles-  1-…

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

A:

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

A:

Q: t a certain temperature the vapor pressure of pure acetyl bromide (CH,COB1) is measured to be 172.…

A: Given- Pressure= 172 mmHg  Weight of acetyl bromide =121 gram  Weight of thiophene= 86.9 g

Q: The liquid used in automobile cooling systems is prepared by dissolving ethylene glycol (HOCH2CH2OH)…

A: To calculate the vapor pressure of the coolant solution, we need to use Raoult's law: P=Xethylene…

Q: A solution is made by mixing 23.1g of pentane with 55.0 g of hexane at 25°C. The vapor pressure of…

A:

Q: A solution is made by mixing 56.7 g acetone and 56.7 g methanol . What is the vapor pressure of this…

A: When two or more than two liquid components or solid in liquid, are mixed, it results in the…

Q: A chemist prepares a solution of zinc nitrate by measuring out 78. umol of zinc nitrate into a 100.…

A: Given: The number of micromoles of zinc nitrate present = 78 μmol The volume of the solution = 100…

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: Naphthalene has a molal freezing point constant of 6.90 ˚C/m and a normal freezing point of 80.20…

A: Given that: Molal freezing point constant of naphthalene = 6.90 oC/m Normal freezing point of…

Q: A solution is prepared by adding 1.50 mol glucose, which is not volatile, to 3.50 mol water. What is…

A: The pressure at which a substance is converted into its gaseous phase is called its vapor pressure.…

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: The vapor pressure of benzene is 100.0 mmHg at 26.1°C. Calculate the vapor pressure of a solution…

A:

Q: What is the vapor pressure when 0.59 mols of caffeine are dissolved in 9.39 mols of water? Assume…

A: Given: The vapor pressure of water at 20 °C = 23.8 torr We have to find the vapor pressure when 0.59…

Q: A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25°C. What is the mole…

A:

Q: The vapor in equilibrium above a hexane-pentane solution at 25.0°C has a mole fraction of hexane…

A: Components of solution : hexane and pentane. Mole fraction of hexane in vapor phase (y1) = 0.70…

Q: Pheromones

A: We will calculate molecular formula and weight

Q: How many moles of non-volatile solute must be added to 265.3 mL of solvent in order to lower the…

A:

Q: Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 ∘C,…

A: We have to calculate the vapour pressure of solution.

Q: A solution contains 16.81 grams of NaCl in 0.580 kg water at 25 °C. What is the vapor pressure of…

A: A nonvolatile salt will decrease the vapor pressure of the solvent. Since NaCl is a nonvolatile…

Q: A solution is prepared by mixing 100 g of an unknown calcium salt (CaX2) into 270.3 ml of water. If…

A: At 25° C vapour pressure of pure water is 23.8 mmHg and that of mixture is 21.6 mmHg. 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.