Calculate the energy released by the reaction

Assignment Help Chemistry
Reference no: EM13717151

Question - 4Fe(s) + 3O2(g) --> 2Fe2O3(s)

Calculate the energy released by the reaction when a 55.8 g sample of iron reacts completely with 1.00 mole of oxygen. The enthalpy of formation of Fe2O3(s) is -826. kJ*mol-1

I am not able to determine the correct answer for the above question please helps me to get the correct answer

Reference no: EM13717151

Questions Cloud

Explore the myriad elements management : Discuss the myriad elements management would consider when anticipating union bargaining proposals? When would management officials prefer centralized bargaining.
How long current have to be applied to plate : A current of 5.34 A is passed through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 8.70 g of nickel
Explain why do dehydration reactions use acid as catalyst : Why do dehydration reactions use acid as catalyst? Why can you not use base for dehydration reactions?
Determine the cost of driving the motor : A 40hp, 1780 r/min, 460V, 3-phase, 60 Hz, drip-proof Baldor Super E premium energy induction motor. Calculate the cost of driving the motor during a 3 year period, knowing the cost of energy is 0.06$/kWh.
Calculate the energy released by the reaction : Calculate the energy released by the reaction when a 55.8 g sample of iron reacts completely with 1.00 mole of oxygen. The enthalpy of formation of Fe2O3(s) is -826. kJ*mol-1
Explain what is the pressure in the bulb : The height of the mercury in the right arm open to atmospheric pressure (760 mmHg) is 100 mm and the height in the left arm is 120 mm. What is the pressure in the bulb
Forces in liquid water that do not exist in liquid ammonia : Although water and ammonia differ in molar mass by only one unit, the boiling point of water is over 100 °C higher than that of ammonia. What forces in liquid water that do not exist in liquid ammonia could account for this observation
Calculate the approximate speed of the motor : phase induction motor rated at 10kW, 1450 r/min, 380v, 50Hz has to be connected to a 60 Hz line. What line voltage should be used, and what will be the approximate speed of the motor?
Define the ph at one-half of the equivalence point : Consider the titration of a 24.0-mL sample of 0.110M HC2H3O2 with 0.125M NaOH. Determine each of the following:

Reviews

Write a Review

Chemistry Questions & Answers

  How many grams of co2 gas are produced

Tums calcium carbonate reactswith stomach acid ( HCI) according to the reaction below. One tablet of tums contains 500.0 mg CaCO3. If one tablet of tums is addedto 20.0 mL 0.100M HCI, how many grams of CO2 gas are produced?

  Define the molar mass for nacl and water

The molar mass for NaCl and water are 58.443 g/mol and 18.015 g/mol, respectively. Calculate the partial molar volumes for NaCl and water in a 0.35m solution

  Analyze soil for mineral nitrogen

Top prepare for this week's lab, you added a KCL solution , Devarda's alloy, and MgO to your soil sample in order to analyze for mineral nitrogen. Sketch a jar containing soil and indicate hoe the nitrogen is initially present in the soil.

  State what is the total pressure in the container in torr

What is the total pressure (Ptot) in the container in torr? What is the partial pressure of argon (Par) in the container in torr?

  What is the mass of naoh that would have to be added

Question- What is the mass of NaOH that would have to be added to 500 mL of a solution of 0.20M acetic acid in order to achieve a pH of 5.0?

  Explain the pure rotational spectrum

The bond length of 13 Na 19F is 192.6 pm. calculate the value of B and the spacing between lines in the pure rotational spectrum of this molecule in unit of s^-1

  Explain how many grams of sucrose must be dissolved in water

how many grams of sucrose (C12H22O11) must be dissolved in 200 g water to make a solution in which the mole fraction of sucrose is 0.1? answer in units of g.

  Explain what is the relationship 22.4 l/mol describe

Write a clear, and complete answer to the following question. Your answer should be directed towards a first year Chemistry student. What is the relationship 22.4 L/mol describe. What is assumed

  Define equivilance point in the titration

What is the molar mass of an unknown dipotric acid if 65.0 mL of a 0.15 M solution of KOH was needed to reach the second equivilance point in the titration of 0.03 g of the acid.

  Depict structures for all possible isomers of tris

Glycine has the structure NH2CH2COOH. it can lose a proton from the carboxyl group and form chelate rings bonded through both the N and one of the O atoms. Draw structures for all possible isomers of tris(glycinato)cobalt(III).

  Compute the heat that accompanies the reaction

Compute the heat that accompanies this reaction in kJ/mol of AgCl formed. Presume that the combined solution has a mass of 100.0g as well as has a specific heat capacity of 4.18 J/C*g.

  Define what will happen to the volume of a gas

What will happen to the volume of a gas when the pressure of a gas decreased from 2 atm to 1 atm, while the temp is decreased from 200c to 100c. Will it increase decrease or remain the same.Explain why.

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