When 7.25 g of #Al# reacts with excess #H_2SO_4# in the reaction #2Al (s) + 3 H_2SO_4 (aq) -> Al_2(SO_4)_3(aq) + 3H_2(g)# how many liters of #H_2# is formed at 25° C and a pressure of 1.650 atm?
The first step is to calculate the number of moles of
First calculate the number of moles of
From the equation we can see that each
We know that a mole of an ideal gas occupies
We are not asked about STP, though, but
Using the combined gas law:
Rearranging to make