Ask Question
8 September, 12:30

When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. what volume of h2 is produced when 7.20 g of al reacts at stp?

+4
Answers (1)
  1. 8 September, 12:38
    0
    2Al + 6HCl = 2AlCl₃ + 3H₂

    m (Al) = 7.20 g

    Vm = 22.4 L/mol

    M (Al) = 27.0 g/mol

    n (Al) = m (Al) / M (Al)

    n (H₂) = 3n (Al) / 2

    V (H₂) = Vm n (H₂) = 3Vm n (Al) / 2 = 3Vm m (Al) / {2M (Al) }

    V (H₂) = 3*22.4*7.20/{2*27.0}=8.96 L
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. what volume of h2 is produced when 7.20 g of al reacts ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers