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 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.

#1
12-15-2003, 12:28 AM
 Balu Sajeevan Guest Posts: n/a
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!
#2
12-15-2003, 01:39 AM
 Bruce Sinclair Guest Posts: n/a
need some help

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

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 anyone´s fault.
If it was Us, what did that make Me ? After all, I´m one of Us. I must be.
I´ve certainly never thought of myself as one of Them. No-one ever thinks
of themselves as one of Them. We´re always one of Us. It´s Them that do
the bad things. <=> Terry Pratchett. Jingo.
#3
12-15-2003, 02:54 AM
 Mike Painter Guest Posts: n/a
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:

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