chemistry

posted by .

-You have a sample of unkonw metal that you have heated to 100 deg Celsius (oC) in boilin water. If, unknown to you, the metal sample cools somewhat before being added to your calorimeter, what will be the effect on the delta T for the water in your calorimeter (assume you have a "perfect" calorimeter)? How will this affect the calculated the specific heat of metal (cmetal)? How will this affect the caluclated molar mass of your metal sample?

  • chemistry -

    If the sample is cooler wouldn't you expect delta T to be smaller; that is, the water in the calorimeter will not be heated as much and the final temperature will be smaller than it should be. Now plug that smaller T into the equation to obtain the answers to the other parts of the question.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    a 100.0 gram metal sample is heated to a temperature of 110 degrees celcius then placed into a calorimeter containing 100.0 r of pure water (at initial temperature of 23 degrees celcius). after the sample and water reach thermal equalibrium, …
  2. Chemistry

    A 108g piece of unknown metal is heated to 100 degrees C in boiling water. The heated sample of metal is then dropped into 50ml of H20, which is initially at 23.0 degrees C. After a few minutes the temp. of water raises to 37.5 degrees …
  3. chemistry

    A 20 gram piece of metal is added to a sample of 100 grams of water inside a calorimeter. If the metal is at a temperature of 125° Celsius and the water is at 20° Celsius, which of the following best describes what will occur inside …
  4. chemistry

    An 8.6 g sample of a metal is heated to 110.0oC and then placed in a coffee cup calorimeter containing 125 g of water at a temperature of 23.00oC. After the metal cools, the final temperature of the metal and water is 26.83oC. Assuming …
  5. chemistry

    a 225.0g sample of an unknown, silver, pure metal was heated to 95.5 degrees Celsius and then put into 150.50g of water at 22.5 degree Celsius. the water was heated by the hot metal to a temp. of 31.4 degree Celsius. what is the specific …
  6. chemistry

    a 225.0 g sample of an unknown, silver, pure metal was heated to 95.5 degrees celsius then put into 150.50 g of water at 22.5 degrees celsius. the water was heated by the hot metal to a temperature of 31.4 degrees celsius. what is …
  7. physics

    A 75.00-g sample of an unknown metal is heated to 52.00°C. It is then placed in a coffee cup calorimeter filled with water. The calorimeter and the water inside have a combined mass of 225.0 g and an overall specific heat of 2.045 …
  8. Chemistry

    A 11.6 g sample of an unknown metal was heated to 100.0 oC and then added to 25.0 g of water at 23.0 degrees Celsius in an insulated calorimeter. At thermal equilibrium, the temperature of the water in the calorimeter was 24.8 degrees …
  9. Chemistry

    a 5.00 gram sample of a metal is heated to 80 degrees Celsius and is placed in a 100 gram sample of water. the temperature of the water rises from 20 Celsius to 20.3 Celsius which of these is most likely to be the metal
  10. science

    2. A 75.0 g sample of a metal is placed in boiling water until its temperature is 100.00C. A calorimeter contains 100.00 g of water at a temperature of 24.40C. The metal sample is removed from the boiling water and immediately place …

More Similar Questions