Friday
April 18, 2014

Homework Help: chemistry

Posted by Samantha on Wednesday, January 9, 2013 at 5:23pm.

Compounds like CCl2F2 are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is 289 J/g. What mass of this substance must evaporate to freeze 195 g of water initially at 17C? (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/g-K.)

i got 270g but its wrong. caus esomeone please show me the work

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chem-answer check please - Compounds like CCl2F2 are known as ...
Chemistry - Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. ...
Chemistry - How many kilograms of chlorine are in 22 kg of each of the following...
Chemistry - Chlorofluorocarbons (CFC's) are organic compounds that have been ...
sci275 - do either one of these have a health or environmental effect ? Carbon ...
SCI 275 - i need help I am having trouble finding this info. Issue Sources ...
Chemistry - CFCs, or chlorofluorocarbons,were once used as refrigerants, but ...
Environmental Science - issue Carbon dioxide (CO2) Chlorofluorocarbons (CFCs) ...
Chemistry - Manufacturing of Freon (CCl2F2): 2 HF(g) + CCl4(I) --> CCl2F2(g...
Biology - 29. CFCs are a problem because they a. have been released in large ...

Search
Members