A chemist weighed out 101. g of potassium. Calculate the number of moles of potassium she weighed out.

Round your answer to 3 significant digits.

The answer is 2.58 moles potassium

The solution to this is,

to find moles, convert grams to mole by the equation

grams (mole/gram) = moles

101. g of potassium (1 mole potassium / 39.10 g potassium) = 2.58 moles potassium