Math(Please check)

posted by .

For an experiment on specific heat capacities of metal in physics, I am trying to calculate my percent error but am having some trouble.

After collecting my experimental data for c (cal/g) for the object that was used which was aluminum my results are:
trial 1 = .19
trial 2 = .22
trial 3 = .26
Average = .22
Then I have to calculate the deviation for each one:
Trial 1 = -.03
Trial 2 = 0
Trial 3 = 0.04
Average = 0.005
The accepted value for aluminum is 0.22 so I took [0.005 - .22] / .22 = 97.7%. I did not think that my error would be this high. Did I make a mistake somewhere?

Thank you for your help!

  • Math(Please check) -

    Please diregard, I figured out my mistake.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Please help! Suppose that a 400 gram copper object (specific heat 0.092 cal/g/degrees Celsius) receives 900 cal. of heat. What is the temperature change?
  2. Physics

    Please help! Suppose that a 400 gram copper object (specific heat 0.092 cal/g/degrees Celsius) receives 900 cal. of heat. What is the temperature change?
  3. 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?
  4. Math(Please help, thank you)

    I am trying to calculate my percent error for an experiment conducted. I need to compare my average density calculated to the accepted average density but I am having trouble doing this because of the conversions. My average density …
  5. Math/Physics(Please check work)

    For an experiment on specific heat capacities of metal in physics, I am trying to calculate my percent error but am having some trouble. After collecting my experimental data for c (cal/g) for the object that was used which was aluminum …
  6. Chemistry(Please check)

    For an experiment on specific heat capacities my data for measured specifi heats was consistently higher than the accepted values. I am not sure why this is. Would it be because my initial temperature that I started the experiment …
  7. chemistry

    3. Based on your answer in question 2, determine the percent error of your calculated specific heat capacity value of your unknown metal using the specific heat capacities of known metals below. Metal Specific Heat Capacity Nickel …
  8. Chemistry

    A metal bar having a mass of 212 g is heated to 125.0°C and then dropped into 375 g of water at 24°C. After a while the temperature of the water and the metal is 34.2°C. If the specific heat of the metal is 0.831 J/g°C, how much …
  9. chemistry

    A 23.9 g piece of metal heated to 97.8 oC is placed in 52.4 g water at 21.9 oC. After the metal is added, the temperature of the water rises to 29.9 oC. Calculate the specific heat of the metal. Express your answer in the units of …
  10. Chemistry

    Somebody please help me. A friend of mine is trying to figure this out and I don't know how to help her because I haven't learned this. A student heats a 15.0 gram metallic sphere of unknown composition to a temperature of 98°C. The …

More Similar Questions