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

  What is the ka of this acid

A 0.12M solution of a weak acid HA has pH = 2.49. What is the Ka of this acid.

  Calculate mass of carbohydrate processed

Assume that a waste contains 395.0 mg/L of biodegradable CH2O and is processed through a 190000.0 L/day sewage treatment plant which converts 40% of the waste to CO2 and H2O.

  Calculate the molarity, molality, mole fraction, and weight

Assume you dissolve 2.56g of malic acid, C4H605 in half a liter of water (500g). Calculate the molarity, molality, mole fraction, and weight percentage of acid in the solution.

  How much heat (in kj}) is evolved

How much heat (in kJ}) is evolved in converting 1.00 mol} of steam at 160.0C to ice at -55.0C? The heat capacity of steam is 2.01 {J/gC}} and of ice is 2.09  J/gC}.

  Determine the volume of the hydrochloric acid solution

A student has prepared a 0.309 M solution of Barium hydroxide and a 0.443M solution of hydrochloric acid for you. Determine the volume of the hydrochloric acid solution will be needed to exactly neutralize 10.0 mL of the Barium chloride solution.

  What concentration of aqueous nacl solution freezes

what concentration of aqueous NaCl solution freezes at -15.2 C? the freezing point of pure water is 0.0 C and Kf of pure water is -1.86 C/m.

  What is the rate constant for the reaction

NO (g) + O3 (g)-> NO2 (g) + O2 (g) For the reaction given, the frequency factor A is 8.7 x 1012 s-1 and the activation energy is 63 kJ/mol. What is the rate constant for the reaction at 75°C.

  How many joules of heat are needed

The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C

  Calculate the number of moles of cl atoms

Calculate the number of moles of Cl atoms in 1.20×1024 of magnesium chloride, MgCl2.

  Determine what mass of titanium displaces

Determine what mass of titanium displaces 65.6mL of H 2 O at the temperature 25 degree Celsius if the density of titanium metal is 4.51 g/cm 3 at the temperature of 25 ° C .?

  What was the final temperature

A 4.20 g nugget of pure gold absorbed 299 J of heat. The initial temperature was 22.0°C. What was the final temperature.

  Estimate the volume of 0.0100m naoh required

lemon juice has a ph of about 2.5. Assuming that the acidity of lemon juice is due solely to citric acid, that citric acid is a monoprotic acid,

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