chemistry

posted by .

a student burns a peanut in a calorimeter. she places 10 ml of water in a test tube. she weighs a peanut before and after burning it. It weighs 3 grams before and 1 gram after burning. She determines that the temperature was at 20 degrees C before and 70 degrees C afterwards. How many kcals/g did the peanut contain?

  • chemistry -

    It isn't clear to me what the problem is all about. Is the water in the test tube in the calorimeter or is that separate?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. AP Chemistry

    A 2.5 gram sample of a hydrocarbon containing C, H, N, O is combusted in excess oxygen. The nitrogen compounds that are formed are treated to convert all of N to N2. The gases are passed through a CaCl2 drying tube which weighs 1.00 …
  2. Chemistry

    You burned a peanut that weights 5.0 grams underneath a calorimeter with 409 mL of water in it. The thermometer reading increased from 21.6 C to 45.5 C. After burning, the peanut weighs 3.43 grams. How many Joules would be released …
  3. physics

    In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount …
  4. physics

    In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount …
  5. chemistry

    The peanut studied had a mass of 0.609 g before combustion and 0.053 g after combustion. The energy released during combustion caused a 14.2 degree Celsius increase in the temperature of 200.0 mL water in the calorimeter. Calculate …
  6. PHYSICS

    In lab, Will burns a 0.6- peanut beneath 48 of water, which increases in temperature from 22 to 46. The amount of heat absorbed by the water can be found with the equation , where is the amount of heat, the specific heat of water, …
  7. Chem 1150

    One tablespoon of peanut butter has a mass of 17g . It is combusted in a calorimeter whose heat capacity is 130kJ/∘C . The temperature of the calorimeter rises from 22.5∘C to 25.3∘C. Find the food caloric content …
  8. chemistry

    A student is performing an experiment to find the density of water. She obtains a 100ml beaker, which weighs 53.257 grams, and she fills it with 60 mL of water. The temperature of the water is 25.5 degrees celsius (room temperature). …
  9. MAth

    1 apple weighs x gram 1 banana weighs y gram; y> x 1 orange weighs z grams A magician can combine 1 apple and one banana to make one orange. The magician is given 57 grams of apples and 57 grams of bananas. what is the theoretical …
  10. Physics

    an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle

More Similar Questions