USe Boyel's law : P1V1=P2V2
125 mm Hg(x)=145 mmHgx.465
x=0.41 L
x=410 ml
The morality of the solution that contains 5.0 moles of solute in 2 .0 liters in the solution is calculated as follows
molarity =moles/volume in liters
= 5 moles/ 2 l = 2.5M
D Group A is soluble, and Group B is insoluble