The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in 1.00 g of butane

4.15×10²² atoms of C are contained in 1 g of butane.

Explanation:

Formula for butane is C₄H₁₀

1 mol of butane contains 4 moles of carbon and 10 moles of H

Molecular weight is 58 g/mol

In conclussion we can say that 58 g of butane contain 4 moles of C and 10 moles of H

We prepare the rule of three:

1 g . 4 moles of C / 58g = 0.0689 moles of C

Now we can count the atoms by NA. We know that 6.02×10²³  particles are contained in 1 mol of anything.

0.0689 mol . 6.02×10²³ atoms / 1mol = 4.15×10²²

4.15×10²² atoms of C are contained in 1 g of butane.

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