If a reaction requires 2 moles of a substance, how many molecules are needed? (Use Avogadro's number: 6.022 x 10²³)

• A. 2.4088 x 10²⁴ molecules
• B. 6.022 x 10²³ molecules
• C. 3.011 x 10²³ molecules
• D. 1.2044 x 10²⁴ molecules