Question
The mass of a single niobium atom is 1.54E-22 grams. How many niobium atoms would there be in 312 milligrams of niobium?
Answers
DrBob222
moles Nb = grams/molar mass
1 mole of Nb atoms contains 6.022E23 Nb atoms.
1 mole of Nb atoms contains 6.022E23 Nb atoms.