How many molecules of CH₄ are in 48.2 g of this compound? A)5.00 × 10^-24 B)2.00 × 10²³ C)4.64 × 10²⁶ D)1.81 × 10²⁴ E)4.00

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Quizplus · Accepted Answer

The molar mass of CH₄ is 16.04 g/mol. Therefore, 48.2 g of CH₄ is 48.2 g / 16.04 g/mol = 3.005 mol. Using Avogadro's number (6.022 × 10²³ molecules/mol), the number of molecules is 3.005 mol × 6.022 × 10²³ molecules/mol = 1.81 × 10²⁴ molecules.

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How Many Molecules of CH₄ Are in 48