How many nicotine molecules are there in 0.0015g nicotine?

One mole is 6.02 × 1023 of anything. One mole of atoms is 6.02 × 1023 atoms, one mole of rice is 6.02 × 1023 grains, one mole of shoes is 6.02 × 1023 shoes.So you take 0.02 and multiply it with...

Nicotine is a single chemical compound.

1.20 × 1022 molecules

Approx. 4 mg in a dip

Most nicotine gum come in two strengths: 2mg and 4mg. /so, that's the amount of nicotine in one nicorette. How much of this is absorbed into the body is unknown by me.