Hi. I guess that blank means you have to find that pressure
Since your dealing with gas law your law is Boyles because your dealing with volume and pressure yet your finding pressure
Let me know if u need help to find pressure
if this question is at constant temperature ,
then this will be solved by boyles law
P1V1=P2V2
P1 = P2V2/V1
P2=1112 V2 = 12.45 V1 =6.531
