Calculate the molar mass of pyrene

Assignment Help Chemistry
Reference no: EM13147535

A compound called pyrene has the empirical formula C8H5 . When 4.04 g of pyrene is dissolved in 10.00 g of benzene, the boiling point of the solution is 85.1°C. Calculate the molar mass of pyrene and determine its molecular formula. The molal boiling-point constant for benzene is 2.53°C/m. Its normal boiling point is 80.1°C.

Reference no: EM13147535

Questions Cloud

Can the marginal utility from a product be negative : Use your own example in order to illustrate these concepts. Can the marginal utility from a product be negative? If yes, give an example.
Which of the is an example of a heterozygous genotype : Which of the following is an example of a heterozygous genotype?
Statements regarding a horizontal analysis : All the following statements regarding a horizontal analysis are true EXCEPT:
Issuance of the bonds and bond interest : Prepare all the necessary journal entries to record the issuance of the bonds and bond interest expense for 2011, assuming that the bonds sold at 104.
Calculate the molar mass of pyrene : A compound called pyrene has the empirical formula C8H5 . When 4.04 g of pyrene is dissolved in 10.00 g of benzene, the boiling point of the solution is 85.1°C.
Determine the best point estimate of the mean : The standard deviation is 4. what is the best point estimate of the mean? find the 95% confidence interval of the mean score for golfers.
Limits to amending a company constitution : what are the limits to amending a company constitution?
What equivalent annual interest rate is second contractor : A nominal rate of 14% should be used as the MARR. What equivalent annual interest rate is the second contractor offering? Which contractor’s offer would you accept? Repeat the analysis with the NPV technique.
What is the flow of the gulf stream in milliters per minute : what is the flow of the gulf stream in milliters per minute (b) what mass of water in the gulf stream flows past a given point in 24 hours? the density of seawater is 1.025 g/ml

Reviews

Write a Review

 

Chemistry Questions & Answers

  Calculate the molarity and the molality of an nh3

Calculate the molarity and the molality of an NH3 solution made up of 37.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.

  What is the atomic mass of x

If 1.50 g of X reacts with 3.54 g of M to produce 4.22 g of a compound with the formula M4X3, and the atomic mass of M is 48.5 amu.

  Show the nuclear reactions

Nuclear reactions is expressed in given reaction as  2/1H +2 /1H→3/2He + ? ; 233/92U+1/0n→133/51Sb+98/41Nb+?1/0n

  Determine the equilibrium concentration of h2s

A reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 × 10-6.

  Calculate binding energy e b of the helium nucleus

Calculate the binding energy E B of the helium nucleus 4 /2 He .Express your answer in millions of electron volts to four significant figures.

  Determines the rate constant for reaction

Determines the rate constant for this reaction and express and determine how many mL of a 0.157M solution of KOH is required to react with 0.385g of CH 3 COOH?

  Calculate the resulting concentration of triiodide ions

Calculate the resulting concentration of triiodide ions in the acidified solution.

  How much sulfur(in tons) present in the original materials

The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust and other resources is about 26 million tons. the equation for the reaction is S + O2= SO2.

  What is the quantum of light called

Which of the intermolecular forces is the most important contributor to the high surface tension shown by water and What is the quantum of light called?

  Determine the mass percent of sulfur dioxide

Nitric oxide has a density = 1.782 g/L at the temperature of 12.64 degree celsius and pressure of 670.7 mm Hg determine the mass percent of Sulfur dioxide?

  Compute amount of heat required to raise the temperature

Find out the Celsius temperature of 2.49 mol of gas contained in a 1.00 L vessel at 1.8 atm pressure.

  What is the concentration of the solution

If 32.5 grams of CaO are dissolved in 212 grams of water, what is the concentration of the solution in percent by mass?

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