1mL is 20 drops.
There is around 15 to 20 drops in one ML. The liquid viscosity will change this answer. You may consider that there is 80 to 100 drops in a 5ml bottle.
Eight mL is 160 drops.
120 drops. 20 drops / mL.
There are approximately 240 drops in 10 ml. Therefore 2.5 ml contains about 60 drops.
~60 drops solution: 20 drops/mL * 3 mL = 60 drops
11mL is 220 drops (20 drops per mL).
20 drops per mL, therefore 20drops/mL x 10 mL = 200 drops.
50*10 = 500 drops.
8mL is 160 drops.
6 drops = 0.3mL
1.0mL = 20 drops
16mL is 320 drops.