Define what is the molecular weight of the compound

Assignment Help Chemistry
Reference no: EM13222086

The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.

121 g/mol

2.78 g/mol

34.4 g/mol

41.2 g/mol

53.8 g/mol

Reference no: EM13222086

Questions Cloud

What would the price elasticity of demand of gasoline : measuring the price of gasoline in dollars, an economist calculates the price elasticity of demand to be .5. what would the price elasticity of demand be if the economist had choosen to measure the price of gasoline in pennies rather than dollars
What is the optimal combination of inputs for firm to employ : Crew Brew produces a popular brand of beer in its mini-brewery located on a small river in Wisconsin. It uses a special formula, combined with the fresh water from the local stream, to produce a drink popular with local folks and tourists who visi..
Does this arrangement violate osha standards fall protection : A painter is standing on a work platform that is 27 feet above ground level. For fall protection, the worker''s safety harness D-ring is attached to a 12-foot shock absorbing lanyard that is securely fastened to the structure at a point 40 feet above..
How many engagement points on flywheel would be necessary : A full revolution press has 100 rpm flywheel rotation. The press is equipped with tow hand trip devices mounted on the machine at a distance of 20 inches from the point of operation. How many engagement points on the flywheel would be necessary to ma..
Define what is the molecular weight of the compound : The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
Explain the vapor pressure of pentane in the solution : What is the vapor pressure of pentane in this solution at 25°C? The vapor pressure of the pure liquids at 25°C are 451 torr for pentane and 321 torr for cyclopentane. Assume that the solution is an ideal solution.
State the specific heat of the hydrochloric acid : sample of MgO was dissolved in 85.00g of 1 M HCl assume that no heat was absorbed by the walls of the calorimeter and the specific heat of the hydrochloric acid solution is 3.64
State the vapor pressure of pure water : The vapor pressure of pure water at 25 degrees Celsius is 28.3 mmHg. Estimate the mass in grams of KCl needed per liter of pure water to reduce the vapor pressure of water at 25 degrees Celsius by 5%.
Explain what temperature does it freeze : A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

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