Answer:
C. 33.6L
Step-by-step explanation:
Based on the reaction, 2 moles of HCl reacts producing 1 mole of hydrogen.
To solve this question we must find the moles of hydrogen produced using the reaction. Then, with combined gas law (PV = nRT) we can find the volume produced:
Moles H2:
3.00 moles HCl * (1mol H2 / 2mol HCl) = 1.50 moles H2 are produced
Volume:
PV = nRT
V = nRT / P
Where P is pressure = 1atm at STP
V is volume = Our incognite
n are moles of the gas = 1.50 moles
R is gas constant = 0.082atmL/molK
T is absolute temperature = 273.15K
V = nRT / P
V = 1.50mol*0.082atmL/molK*273.15K / 1atm
V = 33.6L
C. 33.6L