When 9.8 mol fe react with 11.5 mol hcl, what is the limiting reactant and how many moles of h2 can be formed?
unbalanced equation: fe + hcl yields fecl3 + h2
hcl is the limiting reactant, and 3.83 mol h2 can be formed
fe is the limiting reactant, and 4.90 mol h2 can be formed
hcl is the limiting reactant, and 5.75 mol h2 can be formed
fe is the limiting reactant, and 14.7 mol h2 can be formed

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

can you attach the