Compute the calorimeter constant

Assignment Help Chemistry
Reference no: EM13184905

When 2.25 mg of antracene, C14H10 (s), was burned in a bomb calorimeter the temperature rose by 1.35 K.

1. Calculate the calorimeter constant. The enthalpy of combustion of antracene is -7061 kJ/mol.

2. By how much will the temperature rise when 135 mg of phenol, C6H5OH (s), is burned in the calorimeter under the same conditions? The enthalpy of combustion is -3054 kJ/mol.

Reference no: EM13184905

Questions Cloud

State what are the expected impurities in acetophenetidin : what are the expected impurities in acetophenetidin synthesis?
What is the growth rate of the book value of equity : What is the present value of growth opportunities? or P/E ratios the price is at a point in time while the earnings occur over a period of time. It is, therefore, necessary to specify whether the earnings are for the trailing twelve month period (..
What is the expected return on the equity : Company A just paid a $3.00 dividend per share. The dividend is expected to grow at a 4% rate indefinitely. The beta of the stock of Company A is 1.5. The market risk premium is 8% and the risk-free rate is 3%. (a) What is the expected return on t..
Compute the calorimeter constant : Calculate the calorimeter constant. The enthalpy of combustion of antracene is -7061 kJ/mol.
Explain economic stimulus package-expansionary fiscal policy : By early 2008, most economists believed we were heading towards recession. Congress and the President passed an Economic Stimulus Package (Expansionary Fiscal Policy) and the Federal Reserve cut interest rates (Expansionary Monetary Policy). Expla..
State how many molecules of nh are produced : How many molecules (not moles) of NH3 are produced from 1.52×10?4g of H2?
Compute the pka of the second ionizable group : An uncharacterized compound Z is thought to have an amino group with a pKa of 10.0 and another ionizable group with a pKa between 4 and 7.
How does a two-part tariff differ from bundling : (a) Will a monopolist's total revenue be larger with second-degree price discrimination when the batches on which it charges a uniform price are larger or smaller Why (b) How does a two-part tariff differ from bundling

Reviews

Write a Review

Chemistry Questions & Answers

  State what is the rate constant of a first-order reaction

Please show your work, and I will rate you! TWO PART QUESTION A)What is the rate constant of a first-order reaction that takes 277seconds for the reactant concentration to drop to half of its initial value

  What is the identity of z

If atoms of element Z have a mass of 0.815 , what is the identity of Z?

  How many moles of h2o are needed

Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)

  Define to ensure the impurity does not exceed amount

To ensure the impurity does not exceed this amount, how much water must be added to the solution before the temperature is dropped if the initial solution weighed 500 kg? How much Na2S2O2 will be generated in this process?

  Questions on chemical equations

Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.

  Determine the enthalpy change for the reaction

Determine the enthalpy change for the reaction. 2NO2 (g) -> 2NO(g) + O2(g) These are the given equations: NO + O3 -> NO2 + 02 DeltaH = -198.9 kJ / mol O3 -> (3/2)O2 DeltaH = -142.3 kJ/mol

  Explain how did i get a greater recovery of benzoic acid

How did I get a greater than 100% recovery of benzoic acid?, To quickly summarize, the lab dealt with isolating benzoic acid from a mixture via chemically active extraction.

  What is the weight of nacl formed

An excess of NaOH is treated with 1.1L of dry HCl gas (measured at STP). What is the weight of NaCl formed?

  How much energy in calories was absorbed

A canister is filled with 380g of ice and 100. g of liquid water, both at 0 C. The canister is placed in an oven until all the H2O has boiled off and the canister is empty. How much energy in calories was absorbed?

  Calculate the percentage recovery of hydrogen sulphide

A packed tower is used to purify a gas containing 4 mole % of  H2S. The total inlet gas flow to the tower is 75 kmol/h and the  total inlet pure solvent flow to be used to absorb the H2S is 95 kmol /h.

  Why should reflux of the microscale reaction mixture

Why should reflux of the microscale reaction mixture be gentle, with the condensation ring remaining close to the surface of the liquid in the test tube.

  How many photons are required to heat

Suppose that the microwave radiation has a wavelength of 12.7 cm. How many photons are required to heat 200. mL of coffee from 25°C to 62°C?

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