How many molecules are in 0.585 mole of lactic acid?

There are 3.523x10²³ molecules in 0.585 moles of lactic acid.

Explanation:

To solve this problem we need to use Avogadro's number, which is defined as the number of molecules (or atoms, in the case of an element) that are in 1 mole:

There are 6.023x10²³ molecules in 1.0 mole

With that information in mind, we convert lactic acid moles into molecules:

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