chemistry

posted by .

calculate the energy required to raise the temp. of 170.0 g of silver (specific heat = .24 joules/celsius times grams) from 273K to 301K.

I know the equation and I got 1142.4 joules but need to get to 2 sig figs, so I converted it to 1.1 x 10^4 which is right, but it doesn't accept my makeshift multiplication sign or an asterick. Anything up for suggestion for this particular website?

  • chemistry -

    well, you have the conversion wrong. It is 1.1E3, or 1.1*10^3, which is right. I don't know how it is written at the website you are working with.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A 50.0 g silver spoon at 20.0 degrees Celsius is placed in a cup of coffee at 90.0 degrees C. How much heat does the spoon absorb from the coffee to reach a temp. of 89.0 degrees C?
  2. chemistry

    how do u calculate the specific heat of a metallic element if 314 joules of heat energy are needed to raise the temperature of 50.0g sample from 25.0 degrees Celsius to 50.0 degrees Celsius?
  3. Chemistry

    Calculate the joules of energy involved when 11 grams of water at 10.0 degrees Celsius cools and then freezes at 0.0 degrees Celsius. How many kilocalories are required to raise the temperature of 305 gtams silver from 30 degrees Celsius …
  4. chemistry

    what is the specific heat of silver if it takes 0.300 joules of enegry to raise 0.500 grams of silver from 25.0 C to 27.5 C?
  5. college chemistry

    what is the specific heat of a substance that required 800 joules of heat to raise the temperature of 50 grams of it from 20 degrees Celsius to 30 degrees Celsius?
  6. chemistry

    * A 50 gram sample of an unknown metal warms from 18 to 58 after absorbing 800 joules of energy. what is the specific heat of the metal?
  7. Physics

    What amount of heat is required to raise the temperature of 350 grams of copper to cause a 25°C change?
  8. physics

    What amount of heat is required to raise the temperature of 20 grams of water from 10°C to 30°C?
  9. math

    A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of …
  10. math,

    A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of …

More Similar Questions