Amultivitamin tablet contains 40 milligrams of potassium. how many moles of potassium does each tablet contain?

Answer : The moles of potassium is

Explanation : Given,

Mass of potassium = 40 mg = 0.04 g

conversion used : 1 mg = 0.001 g

Molar mass of potassium = 39 g/mol

Now we have to calculate the moles of potassium.

Formula used :

Now put all the given values in this formula, we get:

Therefore, the moles of potassium is

the answer is d : ) have a good da