### A stoichiometrically equivalent amount of fe2o3

Assignment Help Chemistry
##### Reference no: EM13544505

Calculate the enthalpy change for the thermite reaction:
2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ
when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3

#### Questions Cloud

 Calculate how many chlorine atoms will be in an average : Calculate how many chlorine atoms will be in an average neoprene chain? b) Sketch the bonding between polychloroprene chains due to sulfur linkages as neoprene is vulcanized into an elastomer. c) You decide to go swimming in Bear Lake in late Novembe.. What should be the mixture ratio of pure water to river : A river with 400 ppm of salts (a conservative substance) and an upstream flow of 25 m^3/s receives an agricultural discharge of 5.0 m^3/s carrying 2000 mg/L of salts. The salts quickly become uniformly distributed in the river What is the gage pressure in chamber a : Two chambers, A and B both have manometers with the same fluid with specific gravity 1.4. When h(sub a) = 6 cm and h(sub b) = 4 cm, what is the gage pressure in chamber A? What is the value of ka for ha : A 0.15 M aqueous solution of the weak acid HA at 25.0 C has a pH of 5.35. What is the value of Ka for HA ? A stoichiometrically equivalent amount of fe2o3 : A stoichiometrically equivalent amount of Fe2O3 Bohr model of the hydrogen atom is incorrect : Which of the following statements regarding the Bohr model of the hydrogen atom is incorrect? Calculate and display the altitude and velocity of rocket : Write a program that will solve the problem specified above( for the rocket). However, lit user of your program is to insert the starting height, and the time the rocket travels. What is the average inventory of part x : b. What is the average inventory of part X? Why is operations management relevant to managers : Why is operations management relevant to managers in other organization functions? Base your discussion on your experience of operations within your organization or an organization with which you are familiar. For example, talk with the operat..

### Write a Review

#### Compute the value of vap for this liquid

A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 400.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid.

#### Compute the maximum theoretical percent recovery

Calculate the maximum theoretical percent recovery from the recrystallization of 1.00 g of benzoic acid from 15 mL of water, assuming the solution is filtered at 25 degrees C.

#### State a solution of glyceraldehyde a mass percentage

A solution of glyceraldehyde, C3H6O3, has a density of 1.15 g/mL, and a mass percentage of 28.1% glyceraldhyde at 25 deg C. (molar mass = 90.078g/mol)

#### Compute the minimum number of photons

The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light that can be detected by the human eye. Physical constants can be found here.

#### Explain the dissociation constant ka of ha

What is the pH of a buffer prepared by adding 0.708mol of the weak acid HA to 0.609mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10?7.

#### What is the molar volume of the oxygen gas

What is the molar volume of the oxygen gas at the conditions in the laboratory?

#### Naoh is strong electrolyte and ch3-oh is a nonelectrolyte

NaOH is a strong electrolyte and CH3-OH is a nonelectrolyte. how does their dissociation in water differ

#### Define the dissolution of the sulfides of copper

Explain the dissolution of the sulfides of copper, bismuth and cadmium in nitric acid. Include ionic equations. If a yellow precipitate is obtained upon addition of hydrogen sulfide to an unknown solution of Group II cations, which ions are probably..

#### Compute the osmotic pressure of an aqueous solution

Calculate the osmotic pressure (in torr) of 5.48 L of an aqueous 0.136 M solution at 25 celsius if the solute concerned is totally ionized into three ions (for example, it could be Na2SO4 or MgCI2).

#### Determine the volume of aqueous acetic avid

find the volume of aqueous acetic avid required to prepare an effective buffer solution when 8.2 grams of sodium acetate is used. Assume 500mL is required for the buffer solutions and also find the pH of the buffer.

#### How to calculate ecell for the oxidation of cl

Calculate Ecell for the oxidation of Cl(aq) to Cl2(g) by PbO2(s) in an acidic solution. Assume all other reactants and products, except for H+, are in their standard states for the below values. Round your answer to 3 decimal places. Enter scienti..

#### Explain the molecular mass of potassium manganate

Potassium manganate is a dark green, crystalline substance whose composition is 39.6% K, 27.9% Mn, and 32.5% O, by mass. What is its empirical formula. The molecular mass of potassium manganate is 197.13, what is the molecular formula