Convert 1 mol to millimoles?

The correct answer is: $1000\text{ mmol}$

Explanation

The prefix milli means $10^{-3}$, so one millimole is $10^{-3}$ moles. Inverting that gives the number of millimoles in one mole.

Steps:

1. $$1\text{ mmol}=10^{-3}\text{ mol}$$
2. $$1\text{ mol}=\frac{1}{10^{-3}}\text{ mmol}=10^{3}\text{ mmol}$$
3. $$1\text{ mol}=1000\text{ mmol}$$

Therefore, 1 mole equals 1000 millimoles.