Calculate the heat released (in kilojoules) by the metal

Assignment Help Chemistry
Reference no: EM13129608

An iron bar of mass 869 - g cools from 90 oC to 5 oC  Calculate the heat released (in kilojoules) by the metal. ( specific heat = 0.44 J/(g. c)

Reference no: EM13129608

Questions Cloud

Set of financial statements as possible : It has been said that many corporate executives seemed to believe that it was their job not to produce accurate financial statements for the auditors to certify, but rather to bully the auditors into certifying as aggressive a set of financial sta..
What volume of h2s was collected : A 4.22g sample of CuS was added to excess HCl, and the resulting H2S was collected over water. What volume of H2S was collected at 32 degrees celsius
Explain mutation causing a substitution of one base pair : Does a mutation causing a substitution of one base pair in a strand of DNA necessarily result in a new amino acid in the protein coded for that gene? Explain.
What is the contribution margin per unit sold : If 12,500 units are produced, what is the total of fixed manufacturing cost incurred to support this level of production?
Calculate the heat released (in kilojoules) by the metal : An iron bar of mass 869 - g cools from 90 oC to 5 oC  Calculate the heat released (in kilojoules) by the metal. ( specific heat = 0.44 J/(g. c)
Bradshaw and newell over the two-year period : Based on the information for both Bradshaw and Newell over the two-year period, the earnings per share calculations (rounded to two decimals) indicate that: A) Bradshaw is seeing a greater performance improvement than Newell.
What is the temperature : A 2.41-L container is filled with 189 g argon. If the pressure is 10.0 atm, what is the temperature?
Synthesized from the informational strand of dna : What tripeptide would be synthesized from the informational strand of DNA with the sequence 5' GTATCCAGT?
Problem regarding closing entries : Which is the following that is not true about closing entries?

Reviews

Write a Review

Chemistry Questions & Answers

  How much energy would be required to vaporize water

The standard molar heat of vaporization for water is 40.79 kJ/mol. How much energy would be required to vaporize 29.0 g of water?Answer in units of kJ.

  Find the number of bromine molecules present

Calculate the number of bromine molecules present in the flask if A flask contains 0.350mol of  bromine, Br2 in liquid form .

  Calculate the amount of heat liberated (in kj)

Calculate the amount of heat liberated (in kJ) from 383 g of mercury when it cools from 61.0°C to 11.0°C.

  What mass of sucrose should be combined

What mass of sucrose should be combined with 488 of water to make a solution with an osmotic pressure of 8.25 at 280.

  Briefly describe the health and environmental problems

Choose one of the following atmospheric issues: air pollution, global warming, ozone depletion, and acid deposition. Then, respond to the following,

  Estimate what farm worker''s present concentration would be

The insecticide DDT has a half-life in the human body of about 7 years. That is, in 7 years its concentration.( Although DDT is no longer in use in the United States).

  Proposals for dealing with hazardous waste

Reduce the production of hazardous waste and encourage recycling and reuse of hazardous materials by charging producers a tax or fee for each unit of waste generated.

  How many pounds does a gold sphere weigh

Gold has a density of 19.3 g/cm3. How many pounds does a gold sphere weigh if it has a diameter of 5.20 inches?

  Heat of vaporization of benzene

Determine At what temperature does C 6 H 6 boil when the external pressure = 470 torr?

  Determine the molar mass of the unknown acid

a 0.5224-g sample of an unknown monoprotic acid was titrated with 0.0998M of NaOH. the equivalence point of the titration occurs at 23.82ml. Determine the molar mass of the unknown acid

  Write the nuclear equation for the alpha decay

Write the nuclear equation for the alpha decay ( production of radioactive decay that may be considered radioactive waste products by the useful production of nuclear energy ) of each nuclide that are products of a nuclear power plant Rn-222, T..

  How many milliliters of a stock solution would you need

how many milliliters of a stock solution of 2.00 m kno3 would you need to prepare 100.0 ml of 0.150M KNO3

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