Which element contains the greatest number of moles?

To find the number of moles, we use the formula n = \(\frac{mass}{Molar Mass}\)

N.B: [ He = 4, C = 12, K =39, Zn = 65, Ag = 108]

A. 8 g of Helium, n = \(\frac{8}{4}\) = 2 moles

B. 48 g of Carbon, n = \(\frac{48}{12}\) = 4 moles

C. 78 g of Potassium, n = \(\frac{78}{39}\) = 2 moles

D. 130g of Zinc, n = \(\frac{130}{65}\) = 2 moles

E. 216g of Sliver, n = \(\frac{216}{108}\) = 2moles

Comparing the results, the element with the greatest number of moles is B. 48 g of Carbon, containing 4 moles.

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