Chemistry

posted by .

Imagine that, in lab, you record the mass of a piece of metal, mmetal, as

Tmetal=84.0 degree C

In another step of this lab, you record the mass of water (mwater) in a coffee cup as

Twater1=26.0 degree C
Twater2=29.0 degree C

With the information above and the specific heat of water, 4.184 J/(g•°C), you calculate the specific heat, c, of the metal.

? J/g times degree C

  • Chemistry -

    Your post doesn't make a lot of sense. Record the mass of a metal as 84.0 degrees C? Here's what you would do.
    mmetal x specific heat metal x (29.0-84.0) + [mw x 4.184 x (29.0-26.0) = 0 and solve for specific heat metal.

  • Chemistry -

    I forgot to add mmetal=45g for the first statement and mmetal=130g for the second one.

  • Chemistry -

    No, you didn't have two metals. I might buy 45 g in the first statemenet for mass metal but the 130g must be the mass of the water.
    Substitute those numbers where I have mmetal and mw and solve for specific heat metal.

  • Chemistry -

    I got .6593 for the specific heat. The numbers are the mass of metal 45g for the 84 degree C and 130g for the 26 and 29 degree C.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Can someone please help me with the following?
  2. AP Chem

    I missed a lab in class a week ago and had to make it up just the other day. My teacher didn't have time to explain the lab to me, so he gave me a brief overview of the procedure. The objective of the lab was to calculate the specific …
  3. chemistry

    In a calorimetry experiment in the lab, you were able to record the following data: Mass of water in a calorimeter = 90.0 g Initial temperature of water in calorimeter = 22.0o C Mass of unknown metal = 45.0 g Initial temperature of …
  4. chemistry

    Long but quick chemistry lab that I need confirmation on answers?
  5. Chemistry

    Need help with my lab report for specific heat of unknown metal! I need to Find the Specific Heat of Al! I know its Q= M x Cs x Change in Temp I am getting a such a high number am just confused if its right. Here is what I got in Lab: …
  6. Earth Science

    I need help with the following Lab due tonight, 7/30/12, as I feel completely lost and would appreciate the help. The lab goes as follows: Design an experiment that illustrates the determination of the density of a cylindrical object …
  7. Chemistry

    1. Imagine that you work at a company that prepares chemical solutions. You are asked to label a solution to sell to different customers. One customer is a hospital, another is a chemistry lab at a university, and a third is a physics …
  8. Chemistry Lab

    In chemistry we are doing a lab that involves crucibles and Mg ribbon, we have three days to complete the lab. Anyways do you think it would be alright to substitute the mass of the crucible we had the first day with the mass of the …
  9. Chemistry Dr. Bob

    This is in response to the fact that my experiment had me come up with my own.. I was supposed to measure out as close to 1g as possible of sodium bicarbonate as possible.. This is my lab procedures: Plastic Cup A 1. Measure out 50 …
  10. Chemistry

    I'm sorry But I'm still so badly stuck and I don't get it Initial mass of candle 40.3g Mass of tin calorimeter 41.1g Mass of half-filled calorimeter with water 220.4g Initial temp of water 18.8°C Final temp of water 26.6°C Final …

More Similar Questions