### Determine the mass in grams of al that burns

Assignment Help Chemistry
##### Reference no: EM13314116

The heat of formation of Al2O3(s) is change Hf= -1669kJ/ /mol. a.) Calculate the heat evolved when 3.47 g of Al burns in oxygen. b.) Find the mass in grams of Al that burns when 1039 kJ are evolved.

#### Questions Cloud

 Explain formation to calculate the enthalpy change : For the reaction,: Ca(OH)2(s)+ CO2(g)= CaCO3(s)+ H2O(g) (a) Use the following standard enthalpies of formation to calculate the enthalpy change. Explain the difference between gas chromatography : What are the difference between gas chromatography, column chromatography, and thin layer chromatography Explain how is hcl a base if it has no oh ions in is formula : How is HCl a base if it has no OH ions in is formula to omit when dissolved? Where does it's O come from How much money is required in the trust fund to provide : (1) To provide \$750000 for th construction and \$250000 for the initial equipment of a small engineering laboratory ; (2) to pay the \$150000 per year laboratory operating cost; and (3) to pay for \$100000 of replacement  equipment every 4 years, beginn.. Determine the mass in grams of al that burns : The heat of formation of Al2O3(s) is change Hf= -1669kJ/ /mol. a.) Calculate the heat evolved when 3.47 g of Al burns in oxygen. b.) Find the mass in grams of Al that burns when 1039 kJ are evolved. Explain what is the heat capacity of the calorimeter : After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter. Assu.. Find the resulting voltage difference : An airplane is traveling parallel to the ground in a region where the Earth%u2019s magnetic field is oriented perpendicular to the ground. What is the resulting voltage difference between the ends of each wing What investment can be justified for the new surface : Annual maintenance cost for a particular section of highway pavement are \$2000. The placement of a new surface would reduce the annual maintenance cost to \$500 per year for the first 5 years and to \$1000 per year for the next 5 years. What is routing loops : Explain two of the above techniques briefly with diagrams. What is Routing Loops?

### Write a Review

#### Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

#### Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

#### Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

#### Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

#### How many mols of hydrogen can produce

how many mols of H 2 can produce

#### Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

#### Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

#### Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

#### What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

#### Design a qualitative analysis scheme

Design a qualitative analysis scheme

#### What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

#### The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound