Thursday
April 2, 2015

Homework Help: Chemistry

Posted by Kathryn on Tuesday, April 7, 2009 at 10:27pm.

I am beyond desperate. I do not understand how to calculate heat change at all and I have been looking online and reading my book for the last three hours. Below is posted a problem. It would be amazing if someone could work through it and explain each step they are doing and why they are doing it.

Calculate the heat change for the formation of lead(IV) chloride by the reaction of lead(II) chloride with chlorine
PbCl2(s) + Cl2(g) -> PbCl4(l) H=?
___
Use the following thermochemical equations:
Pb(s) + 2Cl2(g) -> PbCl4(l) h= -329.2kj
Pb(s) + Cl2(g) -> PbCl2(s) h= -359.4kj

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

English - Please help me find these words in the book hatchet. These words are ...
English - I've been reading the book but am having major trouble getting through...
Foreign languages - Can you please check these sentences, Writeacher? Thank you...
Physical science - In my tenth-grade-level physical science class, we're ...
English - Posted by rfvv on Tuesday, August 31, 2010 at 8:19pm. 1. There is a ...
Statistics - Given the following information, determine the 68.3 percent, 95.5 ...
Reading/novel study - If you don't know what page the word keening is on in the ...
Math 116A - I have been out of school for a very long time and I just enrolled ...
French for Brie - P.S. You may have been on for 3 hours but you post first of ...
CHEMISTRY - Post a New Question Current Questions Homework Help: Chemistry ...

Members