Author Question: Reactive metals such as iron will reduce arsenic acid (H3AsO4) to the highly poisonous arsine gas ... (Read 136 times)

nenivikky · **on:** Jul 8, 2021

Question 1

Most water-soluble compounds of Group 1A or 2A elements are:
◦ strong electrolytes
◦ strong acids
◦ weak electrolytes
◦ weak acids
◦ nonelectrolytes

Question 2

Reactive metals such as iron will reduce arsenic acid (H₃AsO₄) to the highly poisonous arsine gas (AsH₃) in the presence of acid. What mass of iron would be required for such a reaction with 250 mL of 0.90 M arsenic acid, assuming that the iron is oxidized to Fe³⁺?

3 H₃AsO₄ + 8 Fe + 24 H⁺→ 3 AsH₃ + 12 H₂O + 8 Fe³⁺
◦ 45 g
◦ 38 g
◦ 34 g
◦ 21 g
◦ 13 g

CharlieArnold · **Reply #1 on:** Jul 8, 2021

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