Go Back   Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum > General Science Forums > Chemistry Forum
Register Search Today's Posts Mark Forums Read

Chemistry Forum Chemistry Forum. Discuss chemical reactions, chemistry.


need some help

need some help - Chemistry Forum

need some help - Chemistry Forum. Discuss chemical reactions, chemistry.


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-15-2003, 01:28 AM
Balu Sajeevan
Guest
 
Posts: n/a
Default need some help



1. What is the mass of the solid NH4Cl formed when 73.0g of NH3 are
mixed with an equal mass of HCl? What is the volume of the gas
remaining, measured at 14*C and 752mmHg? What gas is it?

2. A piece of sodium metal reacts completely with water as follows:

2Na (s) + 2H2O --> 2NaOH (aq) +H2 (g)

The hydrogen gas generated is collected over water at 25*C. The volume
of the gas is 246mL measured at 1 atm. Calculate the number of grams
of sodium used in the reaction. (Vapor pressure of water at
25*C=0.0313 atm)

Thanks!
Reply With Quote
  #2  
Old 12-15-2003, 02:39 AM
Bruce Sinclair
Guest
 
Posts: n/a
Default need some help

In article <[Only registered users see links. ] >, [Only registered users see links. ] (Balu Sajeevan) wrote:

First answer these ...
1) what is homework ?
2) why would anyone help someone who hasn't tried to find the answer
or even thought about it ?


Bruce


-----------------------------------------------------------------------
It was so much easier to blame it on Them. It was bleakly depressing to
think that They were Us. If it was Them, then nothing was anyones fault.
If it was Us, what did that make Me ? After all, Im one of Us. I must be.
Ive certainly never thought of myself as one of Them. No-one ever thinks
of themselves as one of Them. Were always one of Us. Its Them that do
the bad things. <=> Terry Pratchett. Jingo.
Reply With Quote
  #3  
Old 12-15-2003, 03:54 AM
Mike Painter
Guest
 
Posts: n/a
Default need some help


"Bruce Sinclair" <bruce.sinclair@NOSPAMagresearch.NOTco.NOTnz> wrote in
message news:bh8Db.12988$[Only registered users see links. ].net...
[Only registered users see links. ] (Balu Sajeevan) wrote:
and, to see who gets credit for the solution:
3) What is the email address of your instructor?


Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT. The time now is 05:33 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved
Page generated in 0.11832 seconds with 15 queries