# Chemistry

Calculate (in calories) the amount of heat needed to melt 96g of ice at -24 degrees C to water at 28 degrees C.

1. 👍 0
2. 👎 0
3. 👁 217
1. You need two equations.
1. Within a phase
q = mass x specific heat x (Tfinal-Tinitial). For example, for warming from zero C to 28 C you will have
q = mass x specific heat x (28-0) = ?

2. At the phase change. For example, at the melting point you have
q = mass x heat fusion

So you will have q from -24 to zero, at zero, and from zero to 28. Then add each for the total.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Chemistry

How do I calculate the amount of heat needed to convert 96g of ice at -24 degrees celciua to water at 28 degrees celciua?

asked by Emma on April 26, 2011
2. ### Chemistry

How do I calculate the amount of heat needed to convert 96g of ice at -24 degrees celciua to water at 28 degrees celciua?

asked by Emma on April 26, 2011
3. ### Chemistry

How do I calculate the amount of heat needed to convert 96g of ice at -24 degrees celciua to water at 28 degrees celciua?

asked by Emma on April 26, 2011
4. ### Chemistry

Calculate the heat in calories needed to melt 14.0g of ice at 0C .

asked by Sam on September 8, 2011
5. ### Chemistry

Calculate the amount of energy in calories that is needed to melt 45g of ice at -20°C and then increase the temperature to 95°C

asked by Maggie on February 6, 2014
6. ### Physical science

A) a 100 gram ice cube is at -10 degrees celcius. how many calories needed to raise it to 0 degrees C.? B) once its at 0 degrees, how many more calories are needed to melt it? C) once melted, how many are needed to raise it to 100

asked by Crystal on May 1, 2011
7. ### Physics

Suppose that 6.68 kg of shaved ice is needed to keep medications cold in a room that has no refridgerator. What amount of heat (in calories) is needed to be removed from water at 0 degrees Celsius to make ice. Write your answer

asked by Paul on February 26, 2014
8. ### CHEMISTRY

How much heat is needed to melt 150g of ice? and How much heat is needed to change 150g of ice into steam at 110 degrees? My heat of fusion is 361 and my percent error is 8 if you need that. Answers quickly please :(

asked by TaShe on March 8, 2011
9. ### college chemitsry

calculate the calories needed at 0 C to melt 200. g of ice

asked by Amanda on September 8, 2010
10. ### Jake

If 142.38 g of l water at 21.7 degrees C is placed into a syrofoam cup with 174.36 g of ice at -27.5 degrees C what would be the final temperature of the entire contents at equilibrium? If it is partially frozen, how many g of the

asked by Chemistry on October 16, 2007

More Similar Questions