# Chemisty I HN

posted by .

How much heat (in kJ) is given when 85.0 grams of lead cools from 200.0 degrees Celsius to 10.0 degrees Celsius? (Cp of lead = 0.129 J/g)

• Chemisty I HN -

q = mass Pb x specific heat Pb x (Tfinal-T(initial)

## Similar Questions

1. ### PHYSICS 102E

1. How much ice at -10 degrees Celsius is required to cool a mixture of 0.1 kg ethyl alcohol and 0.1 kg water from 20 degrees Celsius to 0 degrees Celsius?
2. ### Physics

How much energy is needed to melt 0.225 kg of lead so that it can be used to make a lead sinker for fishing?
3. ### Physics

How much energy is needed to melt 0.225 kg of lead so that it can be used to make a lead sinker for fishing?
4. ### Chemistry

How many joules (J) are needed to increase the temperature of15.0g of lead from 20 degrees celsius to 40 degrees celsius?
5. ### 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 …
6. ### Physical Science

lead has specific heat of .028kcal/kgC, melting point of 328 degrees C and a heat fusion of 5.5 kcal/kg. how much heat must be provided to melt a 250kg sample of lead with a temperature of 20 degrees Celsius?
7. ### Physics 20

1. How much heat energy is required to change 500 grams of water at 100 degrees Celsius to steam at 100 degrees Celsius?
8. ### Physics

Please Help! I am having difficulties grasping these concepts. Explain please! 1. How much heat energy is required to change 500 grams of water at 100 degrees Celsius to steam at 100 degrees Celsius?
9. ### Physical Science

Consider lead, in what state will it be at each of the following temperatures?
10. ### Science

A piece of lead at 100 degrees celsius has a mass of 500 grams. It is placed in a 200 grams of water at 20 degrees celsius that is contained in an aluminum caloriemeter with a mass of 400 grams. If the final temperature of lead, water …

More Similar Questions