Calculate the heat evolved

Assignment Help Chemistry
Reference no: EM13160308

The heat of formation of Al2O3(s) is -1669 kJ/mol. Calculate the heat evolved when .267 g of Al burns in oxygen.

Reference no: EM13160308

Questions Cloud

Books to record the settlement of the receivable : (c) Prepare the journal entry on Mann's books to record the settlement of his debt. (d) Prepare the journal entry on Doran's books to record the settlement of the receivable.
Calculate the molarity of the naoh solution : when 0.198 g of KHP is tritated with NaOH it requires 27.80 mL of NaOH to reach the endpoint of the reaction. Calculate the molarity of the NaOH solution.
How social psychology differs from other disciplines : Discuss how social psychology differs from other disciplines, such as clinical psychology, general psychology, and sociology in at least 300 words.
Reduce the residual value remaining furniture : Purchased office furniture on credit from Goodyear supply for defective office furniture received on may 10 and returned for credit. The return of defective furniture will reduce the residual value remaining furniture to $3000.
Calculate the heat evolved : The heat of formation of Al2O3(s) is -1669 kJ/mol. Calculate the heat evolved when .267 g of Al burns in oxygen.
Purchasing-procurement and strategic sourcing : Describe and discuss the differences and relationships between purchasing, procurement, and strategic sourcing. How have these concepts evolved?
How dorecombination hot spots and cold spots affect : How dorecombination hot spots and cold spots affect the relationshipbetween the physical map and the genetic map of achromosome.
State what is the equilibrium constant kc : The equilibrium concentration of I2 is 0.0900M. What is the equilibrium constant, Kc , for the reaction at this temperature?
Compute depreciation expense using straight-line method : Compute depreciation expense for 2011 and 2012 using (1) the straight-line method, (2) the units-of-activity method, and (3) the double-declining balance method.

Reviews

Write a Review

Chemistry Questions & Answers

  What is the concentration of the acid

A 56.0 mL solution of phosphoric acid is neutralized by 136.0 mL of 2.6 M NaOH. What is the concentration of the acid?

  How many grams of lead chromate form

how many grams of lead chromate form when a 1.00g sample of Pb(NO3)2 is added to 25.0 mL of 1.00 M K2CrO4 solution

  Show the calculation for the percent yield

show the calculation for the percent yield of K3[Fe(C2O4)3].3H2O using your actual yield and the theoretical yield

  What is atmospheric pressure in atmospheres

What is atmospheric pressure in atmospheres in Denver for heat of fusion=40.6kj/mol at 95 degee celsius

  Calulate the concentration of the diluted naoh solution

An unknown amount of water is mixed with 370mL of a 6M solution of NaOH solution. A 75mL sample of the resulting solution is titrated to neutrality with 50.7mL of 6M HCl.

  What is the percent ionization of this acid

A solution is made by dissolving 0.0350 mol of HF in enough water to make 1.00L of solution. At 24°C, the osmotic pressure of the solution is .975 atm.

  Triethylene glycol the solvent for your first reaction

Triethylene glycol, the solvent for your first reaction, and heavy mineral oil are both high boiling, high molecular weight solvents.

  What is the value of rate constant

A certain first order reaction has a rate constant of 0.0215 s-1 at 24 degrees C. What is the value of rate constant at 70 degrees C if Ea=90.0 kJ/mol.

  Determine the mass of solid sodium formate

Determine the mass of solid sodium formate of MW 68.0 must be combined to 150 mL of 0.66 mol/L

  How much energy is released

Consider: C7H16 (l) + 11 O2 (g) → 7 CO2 (g) + 8 H2O (l) ΔH°reaction=- 4130 kJ. How much energy is released when 4.000 moles of C7H16, is combusted?

  Find the corresponding reaction enthalpy

The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) → Cr(s) + 2 C6H6(g)

  How many grams of water are required

How many grams of water are required to prepare a 1 .50 m NaCl solution using 45.5 grams of NaCl?

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