Monday
April 21, 2014

Homework Help: chemistry

Posted by help on Tuesday, December 11, 2012 at 5:23pm.

* A 50 gram sample of an unknown metal warms from 18 to 58 after absorbing 800 joules of energy. what is the specific heat of the metal?

*copper has a specific heat of 0.387 j/g degree celsius. what is the mass of a piece of copper that undergoes a
21.0 C temperature change when it absorbs 721 J of energy?

*How many joules of energy must be absorbed to raise the temperature of 21 grams of water from 25 C TO 30 C

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - combustion of 0.356g of an unknown metal sample in oxygen gives 0....
chemistry - a 23.8 g sample of unknown metal heated at 100 degrees c is placed ...
chemistry - a sample of iron are is known as Fe3O4. A 50 gram of sample contain ...
Science/C - A 250 gram sample of metal is warmed from 50C to 90C when 100 ...
Chemistry - A sample of unknown metal has a mass of 36.7 g. This metal was ...
chemistry - -You have a sample of unkonw metal that you have heated to 100 deg ...
Science - a sample of an unknown metal has a mass of 21.6g and a volume of 8....
chemistry - a 225.0 g sample of an unknown, silver, pure metal was heated to 95....
chemistry - A 1.857 gram sample containing an unknown amount of arsenic ...
chemistry - A 1.147 gram sample containing an unknown amount of arsenic ...

Search
Members