chemistry

posted by .

what mass of water at 10.0 degrees C is needed to cool 500.0ml of tea from 25.0 degrees C to 18.3 degrees C? Density and specific heat of the tea are the same as water.

  • chemistry -

    This is done the same way as adding cool water to warm water. The only difference is that you solve for mass cool water rather than Tfinal.

  • chemistry -

    (? x 4.184 x 6.7) = (500 x 4.184 x 8.3)
    28.03x = 17363.6
    x= 6.19 x 10(2)g

    is this correct?

  • chemistry -

    I don't think so.
    It appears to me that you've reversed the delta T values.
    [? x 4.184 x (8.3)] = 500 x 4.184 x 6.7
    mass 10 C H2O needed approximately 400 g if I didn't punch the wrong keys.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    What mass of CaCl2(s) must be dissolved in pure water at 10 degrees celsius to make a 26.3 mL solution and to increase the solution temperature to 16.4 degrees celcius?
  2. AP Chemistry

    A 500 g piece of metal at 60 degrees celsius is placed in 200g of water at 22 degrees celsius contained in a coffee cup calorimeter. The metal and water come to the same temperature at 32.5 degrees cesius. The specific heat of the …
  3. Chemistry

    The temperature of 100.0 mL of water was raised from 26.7 degrees C to 62.3 degrees C. How much heat in calories was added to the water?
  4. chemistry

    When 0.320 moles of NH4Cl is dissolved in 1.00 L of water, the temperature drops by 13.7 degrees C. What is the heat of solution of ammonium chloride?
  5. Chemistry

    80.0 mL of water is initially at room temperature (22degrees C). A chilled steel rod at 2 degrees C is placed in the water. If the final temperature of the system is 21.2 degrees C, what is the mass of the steel bar?
  6. College Chemistry

    Given 400.0 g of hot tea at 80.0C, what mass of ice at 0C must bea added to obtain iced tea at 10.0C?
  7. Chemistry

    A cup of teat containing 400g of liquid at 20 degrees celsius was heated. If 58.5 kj of heat was absorbed by the tea, what would the final temperature be?
  8. Chemistry

    A cup of teat containing 400g of liquid at 20 degrees celsius was heated. If 58.5 kj of heat was absorbed by the tea, what would the final temperature be?
  9. Chemistry

    When 22.7mL of o.500 M H2SO4 is added to 22.7mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50 degrees Celsius, the temperature rises to 30.17 degrees Celsius. Calculate the delta h of this reaction. (Assume that the total volume …
  10. chemistry

    A restaurant serves tea in aluminum mugs. The aluminum mug has a mass of 125 g, initially at 24.0 oC with 341 mL tea at 80.0oC. What is the final temperature of the tea after the tea and mug attain equilibrium. Assume the tea has the …

More Similar Questions