1. The problem statement, all variables and given/known data
The rate of decomposition of hydrogen peroxide was studied at a particular temperature. H2O2(aq) = H2O (l) + 1/2O2(g)
The initial concentration of hydrogen
peroxide was 0.200 mol/L. 10.0 s later,
it was measured to be 0.196 mol/L.
b) 0.500 L of hydrogen peroxide solution was
used for the experiment. What mass was lost
as O2 bubbled out of solution in this initial
10.0 s interval?
2. The attempt at a solution
What I did was.
0.500 L * 0.200 mol/L = 0.1
0.500 L * 0.196 mol/L = 0.098
0.1 - 0.098 = 0.002mol
0.002 * 16 = 0.032 g
What I'm doubting is.
0.500 L * 0.196 mol/L = 0.098
Won't the volume change after 10 seconds?
