A chemist weighed out 77.0 g of potassium. Calculate the number of moles of potassium she...

Question

Question

Answer 1

Answer #1

Number of moles of potassium = mass of potassium / molar mass of potassium

Number of moles of potassium = 77.0 g / 39.0983 g/mol = 1.97 mole

Therefore, the number of moles of potassium are 1.97

Answer 2

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