chemistry

Approximately how many joules of heat are needed to raise the temperature of a 4.0-gram sample of water to 8.0C?

that is all of the information that was provided

  1. 👍
  2. 👎
  3. 👁
  1. q = mass H2O x specific heat H2O x (Tfinal-Tinitial).
    4
    q = 4.0g x 4.184 J/g*C x (8-Tinitial).
    Can't do it without Tinitial.
    That 8.0 C may be to raise the T BT 8.0 C. in which case Tfinal-Tinitial = 8.0

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    A 15.0 gram lead ball at 25.0°C was heated with 40.5 joules of heat. Given the specific heat of lead is 0.128 J/g∙°C, what is the final temperature of the lead?

  2. chemistry

    3.) A 5.00 x 10^2 g block of metal absorbs 5016 joules of heat when its temperature changed from 20 degrees C to 30 degrees C. Calculate the specific heat of the metal. I used the formula and came with two answers 100.32 joules

  3. Physical Science

    The specific heat of aluminum is 0.90 J/ g*C degrees and of iron is 0.45 J/g*C. How much energy was absorbed by each 1-gram sample? The temperature of 1 gram of aluminum rises 5.6 C degrees and the temperature of 1 gram of iron

  4. 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? *copper has a specific heat of 0.387 j/g degree celsius. what is the mass of a piece of

  1. Chemistry

    True or false? The calorie is defined as the amount of energy (heat) required to raise the temperature of one gram of water by one degree Celsius.

  2. Chemistry

    Approximately how many joules of heat are needed to raise the temperature of a 4.0-gram sample of water to 8.0C?

  3. physics

    A 920 g empty iron kettle is put on a stove. How much heat in joules must it absorb to raise its temperature from 15.0° C to 93.0° C? (The specific heat for iron is 113 cal/kg · °C.)(1 cal = 4.184 J)

  4. Physics - calorie

    This was my problem: 4.) The specific heat capacity of copper is 0.092 cal/g*oC. Show that the amount of heat needed to raise the temperature of a 10-g piece of copper from 0oC to 100oC is 92 cal. How does this compare with the

  1. Chemistry

    The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C?

  2. chemistry

    How many joules of heat energy are required to raise the temperature of 20 grams of water by 50°C?

  3. Physics

    How long would it take a kettle with a 1kW heating element to heat 1 litre of water? Watts = Joules / second • Mass of 1 litre of water = 1kg • 1 kW = 1 k Joule / second or 1000 joules/ second • 1g of water needs 4.184J to

  4. chemistry

    The specific heat of copper is .4 joules/gram degrees Celsius. How much heat is needed to change the temperature of a 30 gram sample of copper from 20 degrees to 60 degrees? I just need to know how to set up the problem and solve

You can view more similar questions or ask a new question.