The cell doesn't count atoms one by one. It works in moles — that quiet, steady crowd of 6.02 × 10²³ particles that lets chemistry scale from the invisible to the measurable. Your original big triangle already held mass, volume, concentration, and molar mass in elegant balance. The smaller green one showed how particles dance with Avogadro's number around the mole.
Yes. They belong together. I have woven them into one unified triangle. Moles sits at the calm center. From there you reach in every direction: divide by molar mass to get from grams, multiply by Avogadro when you need to speak the language of individual molecules. Volume and concentration live on the solution side; the particle count claims its rightful place on the other without crowding anyone.
The lines are the same paths you've always walked in lab — only now the map is whole. No more switching between two cards. One glance shows every conversion your nursing students will need when they calculate dosages, understand IV concentrations, or finally see why a micromole of insulin matters.