Explain the computation of the enthalpy of vaporization

Assignment Help Chemistry
Reference no: EM13285353

For example if your compound is water and you have the information the boiling point, Tb=(99.98 C), the enthalpy of vaporization= (40.65 kJ/mol) and the molar mass= 18.02g/mol. How do I get the units to cancel to find (degrees C/molality)?

This is the given equation also: Kb=(R(Tb^2)(molar mass))/ enthalpy of vaporization

Reference no: EM13285353

Questions Cloud

How much power is lost in the form of heat in the system : A stereo draws 2.4A at 120V. The audio output power is 50W. a)how much power is lost in the form of heat in the system b)what is the efficiency of the system
How far has the rock traveled horizontally : Larry is standing at the edge of a vertical cliff 210m about the sea. how far has the rock traveled horizontally when it hits the water
Define the concentration of the sodium hydroxide solution : 22.05 mL of a sodium hydroxide solution is needed to react completely with 0.5210 g of KHP (molar mass+204.22) What is the concentration of the sodium hydroxide solution
Find how far from the table will the block hit the floor : A block of mass m = 2.00 kg is released from rest at h = 0.700 m from the surface of a table, How far from the table will the block hit the floor
Explain the computation of the enthalpy of vaporization : For example if your compound is water and you have the information the boiling point, Tb=(99.98 C), the enthalpy of vaporization= (40.65 kJ/mol) and the molar mass= 18.02g/mol.
What external financing is needed : Assets and costs are proportional to sales. Deb and equity are not. A divident of $1,841.40 was paid and Martin wishes to maintain a constant payout ratio. Next years sales are projected to be $30,960. What external financing is needed?
How long does it take for the eagle to reach the water : An eagle perched on a tree limb 19.5 m above the water spots a fish swimming near the surface. How long does it take for the eagle to reach the water
What was the firm cash flow to creditors during 2010 : The 2010 income statement showed an interest expense of $118,000. What was the firm's cash flow to creditors during 2010?
What is the maximum height reached by the object : an object is thrown upward with a speed of 12m/s on the surface of planet x, What is the maximum height reached by the object

Reviews

Write a Review

Chemistry Questions & Answers

  State perfect system when warm water is added to cold water

In a perfect system when warm water is added to cold water, all of the heat energy released would be absorbed by the cold water.

  State the average molecular speed in a sample

The average molecular speed in a sample of CH4 gas is 641 m/s at 311 K. The average molecular speed in a sample of He gas is ________ m/s at the same temperature.

  Calculate the volume in milliliters of dry oxygen

the volume of a sample of oxygen gas collected over water is 258 mL at 27 degrees C and 620.0 torr. Calculate the volume in milliliters of dry oxygen gas at STP. (the vapor pressure of water at 27 degrees C is 26.7 torr.)

  State the hydronium ion and the hydroxide ion

What is their role in this reaction? In the case of this particular example that you watched, where would each of these ions have come from?

  Evaluate minimum mass of sodium bicarbonate

Determine the minimum mass of Sodium bicarbonate or sodium hydrogen carbonate that should be added to the spill to neutralize it?

  Compute the concentration in ppm in the tablet

A second 20ml aliquot was mixed with 10ml of 50ppm quinine solution before dilution to 100ml. The flourescence intensity of this solution was 600. Calculate the concentration in ppm in the tablet.

  Determine the value keq

determine the value Keq at 400K for the decomposition of phosphorus trichloride of [PCl5]=0.135 mol/L, [PCl3]=0.550mol/L.. and [Cl2]=0.550mol/L the equation for the reaction.

  How long does it take for the total pressure rise

The first-order decomposition of SO2Cl2 to sulfur dioxide gas and chlorine gas at 320°C has a half-life of 8.75 hr. If one begins with 600. mmHg of pure SO2Cl2 in a 5.00-L flask at 320°C

  Compare the amount of cooling experienced by an individual

Compare the amount of cooling experienced by an individual who drinks 400mL of water (0 degrees C) with the amount of cooling experienced by an individual who sweats out 400 mL of water at 37 degrees Celsius. Assume all sweat evaporates.

  State a precipitate resulted when the solution was treated

A precipitate resulted when the solution was treated with 6M sodium hydroxide. The precipitate dissolved in ammonia, giving a royal blue solution

  How much heat is evolved per gram of fuel burned

3.8 g of a hydrocarbon fuel is burned in a calorimeter that contains 234 grams of water initially at 25.00 ? C. After the combustion, the temperature is 26.55 ? C

  Find the equation for the work of a reversible

Find the equation for the work of a reversible, isothermal compression of 1 mol of gas in a piston/ cylinder assembly if the molar volume of the gas is given

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