Question

Convert 4.51 x 10²³ molecules to C₂H₆ to moles

Answer 1

Solution:

One mole of any substance contains 6.022×10²³ atoms/molecules.

Hence,

n(C₂H₆) = (4.51×10²³ C₂H₆ molecules) × (1 mol / 6.022×10²³ molecules) = 0.7489 C₂H₆ mol

n(C₂H₆) = 0.7489 moles = 0.75 mol

Answer: 4.51×10²³ C₂H₆ molecules correspond to 0.75 mol of C₂H₆.