Air conditioning in the aluminum evaporator and condenser easy oxidation, affecting the life of air conditioners
A: After dilution, the concentration of Al3 + in the solution is 2mol / L;
(2) The above reaction solution was filtered and the filtrate was diluted to 100 mL,
(1) copper and hydrochloric acid does not react, aluminum and hydrochloric acid occurred 2Al + 6H + = 2Al3 + + 3H2 ↑, n (H2) =
