Cast Enlarge on a vial of acid then Catapult it. 8X damage?

My wizard wants to do a spell combo, it will take two turns.

Enlarge/Reduce then Catapult

  1. Cast enlarge on a vial of acid. It weighs 1 pound and per the spell description it will grow to 8 pounds. So it will have 8 times the volume and therefore it will do 8 times the damage. 16d6 instead of 2d6.

How to deliver it?

  1. Cast catapult on the large vial at level 2, because it weighs 8 pounds now, doing 4d8 damage + 16d6 acid.

A whopping 128HP max. Average 74.5 (if it hits)

Does this work? If not, why?