Question

An excess of Mg(s) is added to a 100. ml of 0.400M HCl. At 0C and 1 atm pressure, What is the volume of H2 gas can be obtained?

Answer 1

@hereweg0
First, crisscross the two compounds.

Then, find the number of moles for HCl.
\[\frac{ x }{ (1000L)(100mL) }\]
Try using this formula:

PV=nRT

With P = Pressure (atm)
V = Volume (liter)
n = moles
R =\[0.0821\frac{ (L)(atm) }{ (mol)(K) }\]
T = Temperature (Kelvin)

And then tell me what you got. :) Hope this helps.

Answer 2

i got 0.896 L