The purpose of the lab is to determine the % comp of an alloy from the volume of hydrogen that is produced in the reaction.
We did a lab, in which an alloy was reacted with hydrochloric acid, in a test tube with a stopper and tube leading to a 500ml sidearm flask, with a clamp on the tubing. The sidearm flask was filled with water, and stoppered with a tube going into a 400ml beaker.
Assuming that the experiment was done correctly, the water from the flask was pushed into the beaker by the exothermic reaction.
Pressure = 762 mmhg
Temp = 21.4C
Mass Alloy Trial One = .1229g, Trial Two = .1251g
Volume water produced T1 = 131.5ml, T2 = 140 ml.
The Attempt at a Solution
I don't know where to start. =/
I calculated the amount of hydrogen produced, by calculating percent H in H20, and I got
14.61ml H2 gas for Trial 1, and 15.56ml H2 gas for Trial 2
I don't know where to go from here though.. any help would be appreciated