A solution containing 34.2 g of cane sugar (C12H22O11 ) in 500.0 g of an unknown...

A solution containing 34.2 g of cane sugar (C12H22O11 ) in 500.0 g of an unknown solvent froze at –0.374°C.
Calculate the freezing point depression constant of the solvent. Calculate the molar mass of cane sugar.

Expert Solution

queen_honey_blossom answered 2 years ago

a solution is made by dissolving 0.131 mol of sugar,C12H22O11, in 175 g of water. the...

a solution is made by dissolving 0.131 mol of sugar,C12H22O11, in 175 g of water. the amount by which the vapor pressure is lowered is? (The vapor pressure of water is 23.76 mm Hg at 25 degrees Celcius. please explain: thank you! Answers: A) 23.00 mm Hg B) 0.316 mm Hg C) 17.8 mm Hg D) 3.11 mm Hg E) 1.33 mm Hg

A 6.00 g sugar cube (sucrose: C12H22O11) is dissolved in a 350 mL teapot containing 80∘ C...

A 6.00 g sugar cube (sucrose: C12H22O11) is dissolved in a 350 mL teapot containing 80∘ C water (density of water at 80∘ C= 0.975 g/mL). What is the molality of the sugar solution? Express the molality with the appropriate units. Calcium chloride, CaCl2, is commonly used as an electrolyte in sports drinks and other beverages, including bottled water. A solution is made by adding 8.50 g of CaCl2 to 60.0 mL of water at 25∘C. The density of the solvent at...

234.2 gm of sugar syrup contains 34.2 gm of sugar. What is the molal concentration of the solution......

1) 234.2 gm of sugar syrup contains 34.2 gm of sugar. What is the molal concentration of the solution ......... (a) 0.1 (b) 0.5 (c) 5.5 (d) 55 2) The atmospheric pollution is generally measured in the units of ..... (a) mass percentage (b) volume percentage (c) volume fraction (d) ppm

A solution containing .40249 g of CoCl2 * xH2O ( a solid with an unknown number...

A solution containing .40249 g of CoCl2 * xH2O ( a solid with an unknown number of waters of hydration) was exhaustively electrolyzed to deposit .09937 g of metallic cobalt on a platinum cathode by the reaction Co2+ + 2e- ---> Co(s). Calculate the number of moles of water per mole of cobalt in the reagent.

An aqueous solution containing 15.9 g of an unknown molecular (nonelectrolyte) compound in 106.5 g of...

An aqueous solution containing 15.9 g of an unknown molecular (nonelectrolyte) compound in 106.5 g of water was found to have a freezing point of -2.0 ∘C. Calculate the molar mass of the unknown compound.

A solution containing 0.20 g of an unknown non-electrolyte in 2.50 g of cyclohexane was found...

A solution containing 0.20 g of an unknown non-electrolyte in 2.50 g of cyclohexane was found to freeze at 4.5 oC . What is the molar mass of the unknown substance?

An aqueous solution containing 34.1 g of an unknown molecular (non-electrolyte) compound in 159.9 g of...

An aqueous solution containing 34.1 g of an unknown molecular (non-electrolyte) compound in 159.9 g of water was found to have a freezing point of -1.5 ∘ C Calculate the molar mass of the unknown compound.

A 19.04 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 233 g...

A 19.04 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 233 g of water. The freezing point of the solution was measured as -3.58 °C. Calculate the mass percent of sugar in the mixture. A list of Kf values can be found here.

A 15.86 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 145 g...

A 15.86 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 145 g of water. The freezing point of the solution was measured as -4.45 °C. Calculate the mass percent of sugar in the mixture.

A 13.13 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 253 g...

A 13.13 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 253 g of water. The freezing point of the solution was measured as -2.41 °C. Calculate the mass percent of sugar in the mixture. Solvent Formula Kf value* (°C/m) Normal freezing point (°C) Kb value (°C/m) Normal boiling point (°C) water H2O 1.86 0.00 0.512 100.00

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