The mass of a single atom of ziroconium is 1.515x10^-22 grams. Which is a correct method for determining the molar mass of Zr.
a) (1 g/1.515x10^-22 atoms)(1 atom/6.022x10^23 moles)
b) (1 g/1.515x10^-22 atoms)(6.022x10^23 atoms/1 mole)
c) (1.515x10^-22 g/1 atom)(1 atom/6.022x10^23 moles)
d) (1.515x10^-22 g/1 atom)(6.022x10^23 atoms/1 mole)
e) none of the above