1 Answer

Mkimmet · Answer 1 · 2017-02-24T11:12:21+0000

Molar mass of H4C = 1 * 4 + 12 = 16 g/mol

Number of moles:

n = m / mm

n = 2.6 / 16

n = 0.1625 moles

Number of molecules:

number of moles * 6.02x10²³

0.1625 * 6.02x10²³

= 9.78x10²² molecules

hope this helps!

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