You need to convert the liters into cube inches such that:

1 liter = 61.023 cube inches

Hence, evaluating the capacity of jar in cube inches yields:

`6.5*61.023  = 396.6495 ` cube inches

You need to evaluate the number of paper clips that enter into the jar, hence, you need to evaluate n such that:

`n= 396.6495/(2*0.5)~~ 396`  paper clips

Hence, evaluating the number of paper clips that enter into the jar yields n = 396 paper clips.