dr bob science

posted by .

Thanks can you check one more

If it takes 105 calories to warm 100g of aluminium from 20oC to 25oC, what is the specific heat of aluminium?

Q = MxdeltaTxC

105cal = 100gx (5oC) x C

C = .21 cal/gCo

we get points off if we do not show our work and just give the answer

  • dr bob science -

    The number looks good to me. I suggest you write it as 0.21 cal/g*C. It's good practice to place a 0 before the decimal; sometimes people tend to overlook the decimal, especially if their eye sight is failing.

  • dr bob science -

    dr bob

    does the o go over the g or the C

  • dr bob science -

    Answered above.

  • dr bob science -

    how many joules are absorbed by a pot of water with a mass of 500g in order to raise the temperature from 20°c to 30°c

  • dr bob science -

    how many joules are absorbed by a pot of water with a mass of 500g in order to raise the temperature from 20°c to 30°c

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. specific heat of Aluminom

    What is the specific heat of Aluminom if it takes 1100 calories to take the temp. from 10 degrees C to 80 degrees C and the block of Aluminon has a mass of 60 grams?
  2. physics

    a 3.55 kg sample of an alloy is heated to 295 degree and plunged into an aluminium vessel containing 10.0L of water. the initial temperature of the vessel and water is 19 degree.the mass of the aluminium vessel is 2.1 kg and the specific …
  3. science

    What is the electron exchange when aluminium and sulphur combine to form aluminium sulphide?
  4. university of johannesburg

    if sample(aluminium ammonium sulphate contains 6%aluminium) what is the approximate percentage of aluminium?
  5. science

    an aluminium container of mass 100g contains 200 g of ice at -20'c heat is added to the system at the rate of 100 cal/sec. what will be the final tmperature of the mixture after 4 min?
  6. Chemistry (PLZ HELP)

    Aluminium can be produced by the thermal decomposition of aluminium oxide. What mass of aluminium would be produced from 3.5kg of aluminium oxide?
  7. American government

    Aluminium sulphate when dissolved in water forms aluminium hydroxide and sulphuric acid.Since, aluminium hydroxide is insoluble in water, a clear solution is not obtained. Al2(SO4)3 + 6H2O →2Al(OH)3 + 3H2SO4Aluminium Aluminiumsulphate …
  8. Physics

    Determine the percentage error. So we found that aluminium has a specific heat capacity of 18441J/KgC And I know that the percentage error = mv-av/av x 100% But how do we know the actual value of aluminium?
  9. Science

    An aluminium cube measures 10 cm on each side. The density of aluminium is 2.7g/cm–³. What is the cube's mass?
  10. Science

    An aluminium cube measures 10 cm on each side. The density of aluminium is 2.7g/cm–³. What is the cube's mass?

More Similar Questions