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The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.14 grams of the compound were dissolved in 243.8 grams of water, the solution began to freeze at -1.369 °C. The compound was also found to be nonvolatile and a non- electrolyte. What is the molecular weight they determined for this compound? g/mol The boiling point of diethyl ether, CH3CH₂OCH₂CH3, is 34.500 °C at 1 atmosphere. K₁(diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.39 grams of the compound were dissolved in 297.6 grams of diethyl ether, the solution began to boil at 34.768 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound ? g/mol The boiling point of water, H₂O, is 100.000 °C at 1 atmosphere. K₂(water) = 0.512 °C/m In a laboratory experiment students synthesized a new compound and found that when

The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.14 grams of the compound were dissolved in 243.8 grams of water, the solution began to freeze at -1.369 °C. The compound was also found to be nonvolatile and a non- electrolyte. What is the molecular weight they determined for this compound? g/mol The boiling point of diethyl ether, CH3CH₂OCH₂CH3, is 34.500 °C at 1 atmosphere. K₁(diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.39 grams of the compound were dissolved in 297.6 grams of diethyl ether, the solution began to boil at 34.768 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound ? g/mol The boiling point of water, H₂O, is 100.000 °C at 1 atmosphere. K₂(water) = 0.512 °C/m In a laboratory experiment students synthesized a new compound and found that when

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 49RGQ: Fluoridation of city water supplies has been practiced in the United States for several decades. It...
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Boiling Point Elevation/Freezing Point Depression AT = m K where, for freezing point depression: and for boiling point elevation: m = (# moles solute / Kg solvent) Kb = boiling point elevation constant. Kf = freezing point depression constant. K₁ and Kf depend only on the SOLVENT. Below are some common values. Use these values for the calculations that follow. Solvent Formula K₁(°C/ m) Kf(°C / m) Water H₂O 0.512 1.86 Ethanol CH3CH₂OH 1.22 1.99 Chloroform CHCI 3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH₂OCH₂CH3 2.02 AT = T(pure solvent) - T(solution) AT = T(solution) - T(pure solvent)
Transcribed Image Text:Boiling Point Elevation/Freezing Point Depression AT = m K where, for freezing point depression: and for boiling point elevation: m = (# moles solute / Kg solvent) Kb = boiling point elevation constant. Kf = freezing point depression constant. K₁ and Kf depend only on the SOLVENT. Below are some common values. Use these values for the calculations that follow. Solvent Formula K₁(°C/ m) Kf(°C / m) Water H₂O 0.512 1.86 Ethanol CH3CH₂OH 1.22 1.99 Chloroform CHCI 3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH₂OCH₂CH3 2.02 AT = T(pure solvent) - T(solution) AT = T(solution) - T(pure solvent)
The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.14 grams of the compound were dissolved in 243.8 grams of water, the solution began to freeze at -1.369 °C. The compound was also found to be nonvolatile and a non- electrolyte. What is the molecular weight they determined for this compound? g/mol The boiling point of diethyl ether, CH3CH₂CH₂CH3, is 34.500 °C at 1 atmosphere. K(diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.39 grams of the compound were dissolved in 297.6 grams of diethyl ether, the solution began to boil at 34.768 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? g/mol The boiling point of water, H₂O, is 100.000 °C at 1 atmosphere. K₁(water) = 0.512 °C/m In a laboratory experiment, students synthesized a new compound and found that when 12.61 grams of the compound were dissolved in 274.3 grams of water, the solution began to boil at 100.392 °C. The compound was also found to be nonvolatile and a non- electrolyte. What is the molecular weight they determined for this compound? g/mol
Transcribed Image Text:The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.14 grams of the compound were dissolved in 243.8 grams of water, the solution began to freeze at -1.369 °C. The compound was also found to be nonvolatile and a non- electrolyte. What is the molecular weight they determined for this compound? g/mol The boiling point of diethyl ether, CH3CH₂CH₂CH3, is 34.500 °C at 1 atmosphere. K(diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.39 grams of the compound were dissolved in 297.6 grams of diethyl ether, the solution began to boil at 34.768 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? g/mol The boiling point of water, H₂O, is 100.000 °C at 1 atmosphere. K₁(water) = 0.512 °C/m In a laboratory experiment, students synthesized a new compound and found that when 12.61 grams of the compound were dissolved in 274.3 grams of water, the solution began to boil at 100.392 °C. The compound was also found to be nonvolatile and a non- electrolyte. What is the molecular weight they determined for this compound? g/mol
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