Given below are two statements: Statement-I : A molecule of butane, ( C ₄ H ₁₀ ) has a mass of 58 amu. Statement-II : One mole of butane contains (6.022 10²³ ) molecules and has a mass of 58 g. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

Statement-I: "A molecule of butane, ( C ₄ H ₁₀ ), has a mass of 58 amu." - The molecular mass of butane ( ( C ₄ 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 10²³ ) molecules and has a mass of 58 g." - One mole of any substance contains (6.022 10²³ ) (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.