Given below are two statements: Statement-I : A molecule of butane,...

Statement-I: "A molecule of butane, (\mathrm{C}}_{4} \mathrm{H}_{10}), has a mass of 58 amu." - The molecular mass of butane ((\mathrm{C}}_{4} $\mathrm{H}_{10}$)) is calculated by summing up the atomic masses of carbon and hydrogen: $4(12 a m u)+10(1 a m u)=48 a m u+1$ Statement-II: "One mole of butane contains (6.022 $\times$10^{23}) molecules and has a mass of 58 g." - One mole of any substance contains (6.022 $\times$10^{23}) (Avogadro's number) molecules, which is correct. - The molar mass of butane is 58 grams per mole, so one mole of butane weighs 58 grams.