chemistry

posted by .

cold water
mass of calimeter+ water: 68.66g
mass of calimeter: 19.19g
mass of water: 49.47g
final temperature of water: 39.1C
initial temperature of water: 25.5C
delta(T) of water: 13.6C

hot water
mass of calimeter+ water: 79.55g
mass of calimeter: 20.61g
mass of water: 58.94g
final temperature of water: 39.1C
initial temperature of water: 52.2C
delta(T) of water: -13.1C

calulate the q-hotwater (specific heat of water 4.18J g^-1 C^-1)

calculate the q-coldwater

can someone please explain to me how this question is done? thanks =]

  • chemistry -

    q for hot water = mass H2O x specific heat H2O x (Tfinal-Tinitial).

    q for cold water = mass H2O x specific heat H2O x (Tfinal-Tinitial).

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Urgent-Chemistry Help

    I need help with the heat effects and calorimetry worksheet. Please explain how to solve it! Thank you so much! A metal sample weighing 45.2g and at a temperature of 100.0 C was placed in 38.6g of water in a calorimeter at 25.6 C. …
  2. 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 …
  3. physics

    When you take a bath, how many kilograms of hot water (48°C) must you mix with cold water (13°C) so that the temperature of the bath is 36°C?
  4. chemistry

    Data collected from the calorimetry of a metal mass of the metal = 110.62g initial temperature of the water in the cup = 23.0 C initial temperature of the metal in the boiling water = 99.02 C final temperature of the metal AND water …
  5. chemistry

    A biology experiment requires the preparation of a water bath at 37.0°C (body temperature). The temperature of the cold tap water is 22.0°C, and the temperature of the hot tap water is 55.0°C. If a student starts with 70.0 g of …
  6. Physics

    When you take a bath, how many kilograms of hot water (50°C) must you mix with cold water (13°C) so that the temperature of the bath is 36°C?
  7. chemistry

    When 86.7 g of water at a temperature of 73 °C is mixed with an unknown mass of water at a temperature of 22.3 °C the final temperature of the resulting mixture is 61.7 °C. What was the mass of the second sample of water?
  8. chemistry

    When 86.7 g of water at a temperature of 73 °C is mixed with an unknown mass of water at a temperature of 22.3 °C the final temperature of the resulting mixture is 61.7 °C. What was the mass of the second sample of water?
  9. ph

    calculate the heat of fusion of ice from the following data at 0°c add to water : Mass of calorimetet 60 g Mass of calorimeter and water 460 Mass of calorimeter plus water and ice 618 g Initial temperature of water 38 °c Final temperature …
  10. CHEM

    You have a bottle of water. The water has a mass of 29 grams. You heat the water with 102 calories of heat and the final temperature of the water is 43°C. What was the initial temperature (in Celsius) of the water before you added …

More Similar Questions