1.812 grams of an unknown compound is dissolved into 77.7 grams of benzene, an organic solvent with a freezing point depression constant, Kf = 5.12 oC/m. The freezing point of the pure benzene is 5.51oC and the freezing point of the solution is 4.25 oC. Find the molar mass (molecular weight) of the unknown compound in g/mol.

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Q: Adding 1g of benzene, C6H6, to 70g cyclohexane, C6H12, lowers the freezing point of the cyclohexane…

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Q: Referring to table 13.3, calculate the freezing point of a solution containg 0.600kg of CHCl3 and…

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Q: Calculate the freezing point of a solution containing 50.0g of NaCl in 5000mL of water, Kf for water…

A: Given data: *Kf of water is 1.86 degrees C/m.  The freezing point is calculated by using the…

Q: Adding 1g of benzene, CH6, to 70g cyclohexane, CH12, lowers the freezing point of the cyclohexane…

A: The formula to calculate freezing point depression constant is as follows, where, Kf = molal…

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Q: a.) Calculate the freezing point and boiling point of the solution when you add 1.00 kg of ethylene…

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Q: 9) Adding 1g of benzene, C,H6, to 70g cyclohexane, C,H12, lowers the freezing point of the…

A: Given:   Mass of benzene = 1 gm  Mass of cyclohexane = 70 gm  Depression in freezing point (∆Tf) =…

Q: What is the freezing point of an antifreeze solution created by adding 651g of ethylene glycol,…

A: Given details,

Q: When 168 mg of a certain molecular compound X are dissolved in 25.0 g of cyclohexane, the freezing…

A: Solution -

Q: Camphor is a white solid that melts at 179.50°C. It has been used to determine the molecular weights…

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Q: Adding 1g of benzene, C,H6, to 70g cyclohexane, C,H12, lowers the freezing point of the cyclohexane…

A:

Q: What is the melting point of a solution prepared by dissolving 25.0 g of KBr (Mm = 119.00 g/mol) in…

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

Q: Calculate the freezing point of a solution containing 50.0 g of NaCl in 5000 mL of water. Kf for…

A: b)

Q: Cyclohexanol, C H,,OH, is sometimes used as the solvent in molecular weight determinations by…

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Q: An online study examined the lowering of freezing point when 0.222 g of an unknown molecular solute…

A: Mass of in known compound ,m = 0.222g Let the molar mass of compound be M g/mol. Then, number of…

Q: When 271. mg of a certain molecular compound X are dissolved in 25.0g of benzene C6H6, the freezing…

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Q: 9) Adding Ig of benzene, CaHs, to 70g cyclohexane, CaH12, lowers the freezing point of the…

A: Given, mass of benezene added = 1g mass of cyclohexane = 70 g Change in temperature =

Q: You are a forensic chemist and vou are given a white powder to analyze. You take a 0.25- g sample of…

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Q: When a 28.4 g sample of an unknown compound is dissolved in 500.0 g of benzene ( C6H6 ) , the…

A: Mass of sample = 28.4 g. Mass of benzene ( C6H6 ) = 500.0 g freezing point of solution = 3.77 °C…

Q: a) What is the freezing point depression caused by adding NaCl to the water? b) The freezing point…

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Q: Calculate the freezing point of an acqueous solution containing 10.50 g of MgBr2 in 200 g of water.…

A: The temperature at which a liquid becomes a solid is called freezing point. Given that, Mass of…

Q: Camphor is a white solid that melts at 179.50°C. It has been used to determine the molecular weights…

A: given mass of unknown compound (solute) = 1.08 g Kf  = 39.7°C/m Mass of solvent = 73.6 g = 73.6×10-3…

Q: 2. A student was required to make a solution of camphor and naphthalene that had a freezing point of…

A: Freezing point is a colligative property, meaning it depends upon the amount of solute or ion…

Q: 9) Adding 1g of benzene, C6H6, to 70g cyclohexane, C6H12, lowers the freezing point of the…

A:

Q: A solution contains 1.75 g of a non–volatile, non–electrolyte solute dissolved in 23.47g stearic…

A:

Q: A solution consisting of 0.240 mol of methylbenzene, C6H5CH3, in 252 g of nitrobenzene, C6H5NO2,…

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Q: Which substance of the following will dissolve in 100 g of water to show the greatest freezing point…

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Q: Calculate the vapor pressure at 25 °C of a solution containing 55.3 g ethylene glycol (HOCH2CH2OH)…

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Q: The dispersed phase of a certain colloidal dispersion consistes of spheres of diameter 1.0 x 102 nm.…

A: The diameter of colloidal sphere (d) = 1.0 ×102 nm.…

Q: 7. The solution has a density of 1.19 g/mL. What is the a. molarity of hydrochloric acid (with water…

A:

Q: Vitamin B2, riboflavin, is soluble in water. If 0.833 g of riboflavin is dissolved in 18.1 g H2O,…

A: Mass of Riboflavin = 0.833 grams Mass of solvent (water) = 18.1 grams Freezing point of Riboflavin…

Q: molecular weight

A:

Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/m In a…

A: Given: Freezing point of benzene = 5.500 °C  Freezing point of solution = 4.500 °C  Mass of compound…

Q: A sample of an organic compound (a nonelectrolyte) weighing 1.35 g lowered the freezing point of…

A: The molar mass of the compound is to be calculated

Q: a. Freezing point of pure water, Tf = 0 °C Freezing point of solution, Tf = -0. 34 °C Freezing point…

A: The molar mass of sucrose from the above given data is calculated as follows:

Q: When 20.0 grams of an unknown nonelectrolyte (i=1) compound are dissolved in 500.0 grams of benzene,…

A: Given that,Mass of unknown nonelectrolyte compound = 20.0 gMass of Benzene = 500 gFreezing point of…

Q: A non-electrolyte compound made from C, Co and O contains 28.10% C (12.01 g/mol), 34.47% Co (58.93…

A:

Q: 9) Adding 1g of benzene, CɛHs, to 70g cyclohexane, CsH12, lowers the freezing point of the…

A: Given information,  Mass of benzene (solute) = 1 g Mass of cyclohexane (solvent) = 70 g Initial…

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.