Question 169511
recalling the standard formula p*v=k
where p=pressure,v=volume and k=constant
we have p1*v1=p2*v2 since temparature is contant we have
p1=0.180atm
v1=4.00L 
p2=?
v2=9.30L
making p2 to be the subject of our formula we have
{{{p2=(p1*v1)/(v2)}}}
p2=(0.180*4.00)/9.30
p2=0.077
hence the new pressure=0.077atm