Obtain the values of vapor pressures of alcohol, water, and glycerin at a room temperature of 20 C.

Q: What is the mole fraction of sucrose when 433 g sucrose C12H22011 (molar mass 342.3 g/mol) is…

A: Mole fraction of sucrose =it is the ratio of  number of moles of sucrose to the total number of…

Q: Suppose 1 g of lauric acid is added to 5 g of stearic acid. Predict the temperature at which this…

A: When 1 g of lauric acid and 5 g of stearic acid are mixed together, no new product is formed in the…

Q: What is the heat of dissolution? Write the expression that gives the change of molar heat of…

A: Solution :     Heat gained or lost by the system is calculated by the amount of heat transfer during…

Q: 12.30g of a highly purified protein was dissolved in 260mL of water. At 50°C, the solution exhibited…

A: Given data,  mass of protein=12.30 g  molar mass=?  V=260 ml =0.260 L  T= 50 °C = (50+273)K =323 K…

Q: The use of Beer’s law to estimate the concentration of protein samples is limited only to dilute…

A: Beer's law is useful to determine any sample( say protein sample) only at it's dilute solution only.…

Q: Illustrate dissolution of the ionic solid NaCl in water?

A: The compounds can be classified on basis of bonding as: Covalent compounds ionic compounds The…

Q: What is the boiling point in Celsius of a solution containing 35.9g of h2O and 490.5g ethanol. molal…

A: The boiling point elevation is calculated as follows: ∆Tb=Kb×mHere, ∆Tb=Elevation in boiling…

Q: Write Short paragraph about heterogeneous coloidal solution.

A: A colloid is a heterogeneous mixture in which dispersed particles have an intermediate size of…

Q: Two phases "a" and "b"  of a pure substance are in equilibrium at some temperature and pressure.…

A: For any equilibrium to exist, there chemical potentials should be always equal. Hence ans will be…

Q: Define the term Osmatic pressure?

A: Osmotic pressure is a colligative property. The properties of dilute solutions which depend only on…

Q: Predict whether the heat of solution is positive, negative, or nearly zero when acetone and methanol…

A: When two substances mix with each other, the following can happen: 1. The mixing can release heat…

Q: What is the osmotic pressure of 2.0g of sucrose (C12H22O11) dissolved in 100-ml of water at 30°C?

A: Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the…

Q: Acrylonitrile and ethyl acetate have the same boiling point: 77.2ºC. In one to two sentences,…

A: Given information, Boiling point of Acrylonitrile and ethyl acetate are same i.e. 77.2°C.

Q: Determine the molality of a solution of water dissolved in ethanol for which the mole fraction of…

A: Mole fraction of 0.361 of the given solution means that 0.361 moles of ethanol are present is 1 mole…

Q: 90 gm glucose dissolve in 500 g water. Molality of the solution is Select one: a. 4 b. 1.5 c. 1 d. 2

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: - It was found that the Solubility benzoic acid in water with di ffaront temperatures Was according…

A: The expression which connects the solubility, the temperature and the change in enthalpy is shown…

Q: If two moles of 1-butanol and one mole of water are mixed, will two phases result? If so, what will…

A:

Q: Suppose you want to purchase a syrup containing water and sugar and you have two brands from which…

A: Freezing point, temperature at which a liquid becomes a solid. As with the melting point, increased…

Q: The concentration of KBr in a solution prepared by dissolving 2.05 g of KBr in 897 g of water is…

A: The concentration (molality) of KBr in a solution is to be calculated.

Q: Substance Molecular Weight (g/mol) Density g/mL Melting point and Boiling point 0C…

A: The melting point, molecular weight, density, melting point, boiling point and solubility of benzoic…

Q: What is the van't hoff factor of dipotassium hydrogen phosphate

A: A question based on general chemistry that is to be accomplished.

Q: A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic…

A:

Q: What is the boiling point rise in oF of a 15% solution of nitric acid in water boiling at 200oF?

A: Given: Mass of HNO3= 15 g  Mass of solvent = 85 g  Initial boiling point = 200°F Standard data:…

Q: Since the composition of the liquid and vapor phases are the same, azeotropic mixtures mix with each…

A: Solution :    The azeotropic mixture is defined as the mixture of two or more liquid components…

Q: what is the van hoff's factor for benzene

A:

Q: 38. A potassium chloride (KCI) solution containing 30g/100g of water at 10°C is warmed to 40°C. What…

A: To find out the mass of potassium chloride which is needed to be added to a solution consisting of…

Q: Describe the following processes:(i) Dialysis(ii) Tyndall effect

A: The solution is made of solute and solvent. The solvent is the major part of the solution hence…

Q: What is the van't hoff factor of barium chloride?

A: The Van’t Hoff factor is used in the calculation of osmotic pressure, elevation of boiling point,…

Q: Calculate the missing data in the following table. Compound ΔHvap (kJ/mol) ΔSvap [J/(mol·K)]…

A: The formula relating ∆Hvap and ∆Svap is: ∆Svap = ∆Hvap  Tb where Tb = Boiling point temperature in K

Q: By how much is the vapor pressure reduced if 2.00g of sucrose, C12H22O11, is added to 100g of water…

A: Given : Mass of sucrose = 2.00 g Mass of water = 100 g Vapor pressure of water = 17.5 mm Hg

Q: e osmotic pressure (in atm) of

A:

Q: A sample of water is found to contain Ca(HCO3)2 = 40.5, Mg(HCO3)2 =46.5, CaSO4=32.1, CaCl2=22.45,…

A: The water hardness is the presence of dissolved carbonate, bicarbonate, chloride, sulfide, or…

Q: How many grams of fructose (C6H12O6) must be dissolved in 937 g of acetic acid to raise the boiling…

A:

Q: Explain and sketch the Born-Mayer equation to determine the crystallization energy of NaCl and MgCl2

A:

Q: Does the entropy of the system increase, decrease, or stay the same when a solid sublimes?

A: Entropy is the measure of randomness. When the randomness increase entropy increases.

Q: Calculate the molar mass of sucrose in a solution prepared by dissolving 4.27 grams glucose in 50.0…

A: Elevation in boiling point ∆Tb=Kb×m∆Tb=Kb×given massmolar mass×volume of solvent(kg)Kb=elevation in…

Q: Calculate the boiling-point elevation for a 2-liter volume of water containing 20 g of table salt.…

A: Given :-  volume of water = 2 L  mass of table salt = 20 g  Kb of watet = 0.52 °C/m  To calculate :-…

Q: The boiling point of pure toluene is 111.01 C and its Kbp is + 3.29 C.kg.mol-1. A 0.448 g sample of…

A:

Q: What is vapor pressure? Explain this by discussing the effects or application of vapor pressure in a…

A: This contains a string of three different questions which are not related to each other. Due to…

Q: the van't Hoff factor i for iron chloride,

A: Given :-  depression of freezing point = 0.2976 °C  molality = 0.050 m  kf = 1.86 °C/m  To calculate…

Q: When 18 g of glucose is dissolved in 180 g of water then the mole fraction of glucose is: (a) 0.0099…

A: Given: Weight of glucose = 18g Weight of water= 180g  To Find: Mole fractions of glucose Definition:…

Q: The normal freezing point of n-octane 1C8H182 is -57 °C. In what temperature range is it a…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…