Final answer:
For 2 moles of aluminum, 6 moles of HCl are required according to the balanced chemical equation. Using Avogadro's number, there are 3.612×1024 molecules of HCl needed; however, this number does not match any of the provided options, indicating a potential error.
Step-by-step explanation:
The question involves finding the number of molecules of HCl that would react with 2 moles of Al. The balanced chemical equation for the reaction between aluminum and hydrochloric acid is:
2 Al + 6 HCl → 2 AlCl3 + 3 H2 (g)
According to the equation, 2 moles of aluminum (Al) react with 6 moles of hydrochloric acid (HCl). Knowing that Avogadro's number is 6.02×1023 molecules per mole, we can calculate the number of molecules needed for the reaction:
6 moles HCl × (6.02×1023 molecules/mole) = 3.612×1024 molecules of HCl
However, none of the provided options matches this number. It suggests there may be an error in the available choices or in the interpretation of the question.