(a) Graphite is the crystalline form of carbon used in lead pencils. How many moles of carbon are there in 295 mg of graphite?
Mol?
(b) Manganese (Mn) is a transition element essential for the growth of bones. What is the mass in grams of 1.93 multiplied by 1021 Mn atoms, the number found in 6.00 kg of bone.