Calculate the amount of KCl which must beadded to 1 kg of water so that the freezing point is depressed by 2K. (Kf for water = 1.86 K kg mol-1)

Q: How much CaCl, should be used in order to decrease the freezing point of 14 kg water in an…

A:

Q: C. Calculate the boiling point and freezing points of the following aqueous solutions: (i) 1.00 %…

A: Note-Since the given question is a multiple question, hence I solved first question according to…

Q: K,= 2.57 °C kg mol for a certain subs 20 colution freezes at 5.7 °C. Calculate the freezing point of…

A: At freezing point of liquid there exists equilibrium between solid particles and solvent phase.…

Q: Which solution would have the highest boiling point, 0.500 M K2CO3 or  0.500 M MgSO4?  Explain.

A: Boiling point will be highest for the compound having maximum Vant's Hoff factor for the same…

Q: How many grams of ethylene glycol (molar mass = 62.07 g/mol) must be added to 1500.0 g of water to…

A:

Q: When 14.0 g of non-electrolyte were dissolved in 420 g of water (K 1.86°C/m), the resulting solution…

A: Freezing point: It is the temperature at which any liquid start to freeze. Depression in freezing…

Q: Determine the required concentration (in percent by mass) for an aqueous ethylene glycol (C2H6O2)…

A: Given data, Boiling point of solution = 104.1oC The boiling point of pure water = 100oC Kb of water…

Q: A solution containing 10.0 g of an unknown liquid and 90.0 g water has a freezing point of -3.33 °C.…

A: When talking about colligative properties, the magnitude of the freezing point depression can be…

Q: The vapor pressure of diethyl ether (ether) is 463.6 mm Hg at 25 °C. How many grams of chlorophyll ,…

A: We have to determine the mass of a non-volatile, non-electrolyte solute chlorophyll solute that is…

Q: What is the normal boiling point of a 3.45 mol solution of KBr that has a density of 1.80 g/mol? (kB…

A: The elevation in boiling point is defined as the addition of another solute in the solvent that will…

Q: How many grams of NaCl would need to be added to 1001 g of water to increase the boiling temperature…

A: The elevation in boiling point is expressed as :

Q: What mass of glucose (C6H12O6) should be dissolved in 10.0 kg of water to obtain a solution with a…

A: Depression in freezing point of a solution is given by: ∆Tf = Kfm        ……(1) where ∆Tf is the…

Q: What is the molalityof solution made by dissolve 25 g of NaCl in to 2.0 Liter of water. Assume the…

A: Given: Mass of NaCl=25 g Volume of water=2.0 L Density of water=1.0 g/mL

Q: Calculate the mass of ethyleneglycol 1C2H6O22 that must be added to 1.00 kg of ethanol1C2H5OH2 to…

A:

Q: Calculate the freezing point of a solution containing 0.600 kg of CHCl3 and 42.0 g of eucalyptol

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: A mysterious white powder could be powdered sugar 1C12H22O112, cocaine 1C17H21NO42, codeine…

A: The expression for the freezing point depression is as follows,…

Q: How many grams of pyrazine (C4H4N2) would have to be dissolved in 1.50 kg of carbon tetrachloride to…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: Calculate the freezing point of a solution of 5.25 moles of a non electrolyte substance in 0.5 kg of…

A: we need to calculate freezing point of the solution

Q: Calculate the boiling point of the solution 3.1 %% KClKCl by mass (in water)

A: Boiling point is the temperature at which vapor pressure of liquid become equal to atmospheric…

Q: An aqueous solution is 10.% glucose by mass (d=1.039 g/mL at 20°C). Calculate its freezing point,…

A:

Q: A solution containing 5% ethanol (C2H5OH) has a specific gravity of 1.05 g/mL. Calculate the boiling…

A:

Q: Sorbitol is a sweet substance found in fruits and berries and sometimes used as a sugar substitute.…

A: Solution: it is well known that depression of freezing point is .....(i) (Tf is freezing point, Kf…

Q: The density of a 0.323Maqueous solution of sodium phosphate (Na3PO4, MM 163.94g/mol)…

A:

Q: Concentrated Sulphuric acid (98.12 g.mol-1) has a density of 1.5 g/cm3and is 60% H2SO4 per mass.…

A: Molarity =  1000 x W/(MM x V) Where, W = mass of solute in gram; MW = molar mass of solute and V =…

Q: What mass of BaCl2 is needed to be dissolved in 1200 g of water to prepare 0.5-molal BaCl2 solution?

A: Molality is defined as the moles of solute that are present in 1 kg of solvent. The formula for…

Q: Water has a molal freezing point constant of 1.86°C kg/mol.  Calculate the freezing point of 37.378…

A: Given  molal freezing point constant of  water = 1.86℃ kg/mole Mass of CaCl2  = 37.378 gram  Mass of…

Q: The vapor pressure of acetone (58.08 g mol-1) at 20 °C is 184.8 mmHg. Calculate the mass of quinine…

A:

Q: What is the molality of a solution prepared from 47.2 g KBr in 500.0 mL of water at 25ºC? Assume the…

A: Given  Mass of KBr = 47.2 gram  Volume of water  =  500 mL  Density of water  =  1 gram/mL Molality…

Q: What would be the theoretical freezing point of a solution made by dissolving 15.56 g of CrSO 4 in…

A:

Q: (a) What is meant by:(i) Colligative properties (ii) Molality of a solution(b) What concentration of…

A: (a) (i) Colligative properties : The properties of solution which depend upon the number of solute…

Q: The density of an aqueous solution containing 40.0% sulfuric acid (H2SO4) by mole is 1.681 g/mL. a)…

A: Molality: The number of moles of the solute dissolved in one kilogram of the solution is known as…

Q: The boiling point of chloroform increased by 3.68oC when 0.167g of an unknown samplewas dissolved in…

A:

Q: how would you prepare a 1.50 molal solution of sucrose in water ? at what temperature would the…

A: The concentration is also expressed in terms of molality. The formula of molality is as follows, To…

Q: In benzene, dimerization occurs with benzene due to hydrogen bonding. In 110 gof benzene, 1.70 gof…

A: Colligative property is a property that depends on the number of molecules present in the solution.…

Q: Calculate the boiling point of 178g of CaCO3 dissolved in 1kg of water?

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: The boiling point of benzene is 80.1 °C and its molal boiling point elevation constant (Kb) is 2.53…

A:

Q: The solvent carbon disulfide has a melting point of -111.5 deg C, and a freezing point depression…

A: Given: The melting (freezing point) point of carbon disulfide = -111.5 deg C. The freezing point…

Q: What is the minimum mass of ethylene glycol (C2H&O2) that must be dissolved in 14.5 kg of water to…

A:

Q: 18.0 %(m/m) solution of potassium chloride has a density of 1.12 g/cm3 at 20.0 °C. Calculate the…

A: %m/m of KCl = 18.0%  Density of KCl = 1.12 g/cm3  Molarity = ?  Molality = ?

Q: (a) Calculate the vapor pressure of water above a solutionprepared by adding 22.5 g of lactose…

A: (a) First find the moles of lactose and water. Molar mass of lactose = 342.34 g/mol Molar mass of…

Q: Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by…

A: The number of moles (n) of ethanol is calculated using equation (1),

Q: 15.0 g of an unknown molecular material was dissolved in 450 g of water. The resulting solution was…

A: The freezing point of a substance is the temperature at which there exists an equlibrium between its…

Q: Calculate the molality of a solution containing 130.6 g of glycine  (NH2CH2COOH)  dissolved in…

A: Molality = Number of moles of solute/Mass of solvent in Kg Number of moles of solute = Mass of…

Q: What molal solution is made when adding 90 grams of K2SO4 to 0.55 kg of water?

A: Morality is defined as number of moles of solute dissolved in per kg of solvent.  It is denoted by…

Q: 1. Calculate the vapor pressure of a mixture containing 35.6 g of glucose and 5 mL of ethanol at…

A: Given :-  Mass of glucose, C6H12O6 = 35.6 g  Volume of ethanol, C2H6O = 5 mL  Temperature = T = 25…

Q: the following mixture of two compounds 45.00 mL of X (MW =53.00 g/mol)(density 1.186 and 830.00 mL…

A: When a solute is added to a pure solvent, the freezing point of the pure solvent decreases. this…

Q: Consider a solution of MgCl2(aq) with a molality of 0.00245 mol kg-1 Calculate the freezing point of…

A:

Q: The Henry's law constant (k) for O, in water at 20°C is 1.28 x 10 mol(Latm). (a) How many grams of…

A: The answer for part (a) is given below. Kindly post the other sub part as separate question Given:…

Q: The formula for freezing point depression is AT = %3D a. Kfm O b. K/ws/mol O c. w/Ws m O d. MW/kw

A:

Q: Benzene has a normal freezing point of 5.50°C and a molal freezing point depression constant of…

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.