What is the molality of the solution

Assignment Help Chemistry
Reference no: EM131982130

Pure ethanol boils at 78°C, but an ethanol solution containing glycerol (condensed formula: CH2(OH)CH(OH)CH2(OH)) does not. If 4.66 g of glycerol has been dissolved in 125 g of ethanol:

a. What is the molality of the solution?

b. At what temperature does the solution begin to boil? (Kb = 1.22°C /m)

Reference no: EM131982130

Questions Cloud

Reflective report on how technology help : ISYS 111: Fundamentals of Information Systems - Reflective report on how technology may further help the same business you have considered in Assessment Task 1
Unknown molecular mass is dissolved in benzene : A non-polar molecule of an unknown molecular mass is dissolved in benzene. When 12.5 g of this substance is used to make a 150.0 g solution
How atmospheric pressure affects seasonal changes : Create a diagram or illustration addressing the following: The elevation, air flow, and atmospheric pressure for each cloud type.
Write a two-page paper that identifies three companies : Write a two-page paper that identifies three companies in the retail business that have been using big data.
What is the molality of the solution : Pure ethanol boils at 78°C, but an ethanol solution containing glycerol (condensed formula: CH2(OH)CH(OH)CH2(OH)) does not.
Why is the polar front an important feature in midlatitudes : Why is the polar front an important feature in the midlatitudes? Why are condensation nuclei important for precipitation to occur?
How much propylene glycol : The vapor pressure of water at 60°C is 0.196 atm. In order to reduce the vapor pressure to 134 torr (1 atm = 760 torr), how much propylene glycol
Explain what jobs do you think have the best mix of salary : Explain What jobs do you think have the best mix of salary and other characteristics that individuals care about?
Discuss advantages of the ubiquity of solar and wind : Then refer to the maps depicting the spatial distribution of various energy sources and comment on the advantages of the ubiquity of solar and wind.

Reviews

Write a Review

Chemistry Questions & Answers

  State the normal melting point of benzene

The normal melting point of benzene is 5.5 degrees Celsius . For the process of freezing, what is the sign for each of the following

  Calculate the change in temperature

Calculate the change in temperature for 4.5g of CaCl2 dissolved in 90.0mL of H20. Assume that calorimeter absorbs no heat. (Ccal=0)

  Explain the molecular formula of the gas

Exactly 500 cubic centimeters of a gas at 1 atmosphere and 0 degrees Celsius weighs 0.581 grams. The composition of the gas shows it to be composed of only carbon and hydrogen, the carbon being 92.24%. What is the molecular formula of this gas

  State the positive terminal of the potentiometer

The reference electrode is attached to the positive terminal of the potentiometer, and the silver electrode is attached to the negative terminal. The solubility constant of TlBr is Ksp = 3.6 × 10-6 and the solubility constant of AgBr is Ksp = 5.0 ..

  What will be the volume of the gas sample

A gas sample has an original volume of 700 ml when collected at 750 mm and 25°C. What will be the volume of the gas sample if the pressure increases to 810 mm and the temperature increases to 30°C?

  State a chemical equation for ca(oh)_2 (aq)

Write a chemical equation for Ca(OH)_2 (aq) showing how it is an acid or a base according to the Arrhenius definition.

  A gas sample has an original volume of 700 ml when

a gas sample has an original volume of 700 ml when collected at 750 mm and 25degc. what will be the volume of the gas

  State potato chips products for the packaging label

As a food chemist for a major potato chip company, you are responsible for determining the salt content of new potato chips products for the packaging label.

  Explain the formation of precipitate when soda ash

Net ionic equations to describe the formation of precipitate when soda ash (Na2CO3) is added to hard water

  Define what mechanism is responsible for the formation

The molecule, atracurium, is a very complex drug. Atracurium exhibits a very short half-life (20-min). The products of the fastest inactivation process are shown. Define what mechanism is responsible for the formation of the products.

  Define the reaction is second order in c4h6

Define the reaction is second order in C4H6. Suppose the rate constant is 4.0 x 10^-2 M^-1s^-1, and the initial concentration of C4H6 is 0.080 M, Define how long will it take the concentration of C4H6 to reach 0.400M. Also how long are the 1st and..

  Hydronium ion concentration using henderson-hasselbalch

hydronium ion concentration using henderson-hasselbalch equation.1. what is the hydronium ion concentration of a

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd