Define the molecular weight of the unknown nonelectrolyte

Assignment Help Chemistry
Reference no: EM13221834

When 35.0 g of an unknown nonelectrolyte is dissolved in 220.0 g of benzene, the solution boils at 83.2°C. Calculate the molecular weight of the unknown nonelectrolyte. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.

130 g/mol

20.3 g/mol

183 g/mol

156 g/mol

194 g/mol

Reference no: EM13221834

Questions Cloud

An insurance company is concerned that garage : How can the company do this and obtain independent samples? Explain in detail
Define what is the mean of the population : Develop a 90 percent confidence interval for the population mean. The previous director, in the summary report she prepared as she retired, indicated the mean length of membership was now "almost 10 years." Does the sample information substantiate..
How many prisoners does the county plan to process per year : If its holding area at this new location has design and effective capacities of 10,000 and 7,500 prisoners processed annually, respectively, and it plans to be 80% efficient in its use of this space, how many prisoners does the county plan to proc..
Construct percent confidence interval for population mean : A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position. The standard deviation of the sample was 6.2 weeks. Construct a 95 percent confidence interval f..
Define the molecular weight of the unknown nonelectrolyte : Calculate the molecular weight of the unknown nonelectrolyte. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
Estimate the amount of growth : In trying to estimate the amount of growth that took place in the trees recently planted by the county parks commission
Explain is the melting of wax a physical or chemical change : Is the melting of wax a physical or chemical change? from the mass measurement only,( the mass of the candle at 0 minute is 10.1g, after 30 minutes is 7.4g) how could a chemical also be proved to have occured in the burning of candle.
Determine percent confidence interval for population mean : A recent study of 50 self-service gasoline stations in the Greater Cincinnati-Northern Kentucky metropolitan area revealed that the mean price of unleaded gas was $2.029 per gallon. The sample standard deviation was $0.03 per gallon.
Acetaminophen is an active ingredient : Acetaminophen is an active ingredient found in more than 600 over the counter and prescription medicines, such as pain relievers, cough suppressants, and cold medications.

Reviews

Write a Review

Chemistry Questions & Answers

  Estimating the effect of pressure on solubility

The solubility of CO2 in water at 25°C and 1 atm is 0.034 mol/L. What is its solubility under atmospheric conditions? (The partial pressure of CO2 in air is 0.0003 atm.) Assume that CO2 obeys Henry's law.

  State solid chromium sulfide is placed in a test tube

Here is the question and I need help showing the whole problem and solution. It says: Solid Chromium (III) Sulfide is placed in a test tube and mixed with water

  Compute the mass of butane needed to produce carbon

Calculate the mass of butane needed to produce 89.8g of carbon dioxide. express the mass of butane numerically

  What is the final temperature of the mixture

A 54.7-g sample of aluminum at 95.0 oC is dropped into 35.0 g of water at 40.0 oC. What is the final temperature of the mixture? (specific heat capacity of aluminum = 0.89 J/goC; specific heat capacity of water = 4.184 J/g degreesC)

  Define ph of a benzioc acid-benzoate buffer

What is the [H30+] and the pH of a benzioc acid-benzoate buffer that consists of 0.17 M C6H5COOH and 0.26 M C6H5COONa? (Ka of benzoic acid = 6.3*10^-5)

  Define the structure and names of five alkenes

the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation

  Determine the acid content of the vinegar

Determine the acid content of the vinegar as wt % CH3COOH, acetic acid

  State how many grams of sodium azide are needed

How many grams of sodium azide are needed to provide sufficient nitrogen gas to fill a 35.0 by 35.0 by 25.0 cm bag to a pressure

  What is the mass of iron in grams

A sample of molten iron occupies of a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?

  State a certain reaction has an activation energy

A certain reaction has an activation energy of 27.03 kJ/mol. At what Kelvin temperature will the reaction proceed 3.00 times faster

  How much energy in joules would be absorbed

The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg . How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?

  Define the cupric hydroxide intermediate in the synthesis

Why is it particularly important to wash the cupric hydroxide intermediate in the synthesis of cupric acetate (verdigris)? Be specific about what is being removed and why it matters.

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