Compare The Reaction Between Aluminum And Hydrochloric Acid
Some metals react with acids while others do not. In this experiment, students will perform 2 reactions: aluminum/zinc with excess 6M hydrochloric acid and aluminum-zinc alloy with excess 6M hydrochloric acid. The purpose of this experiment is to determine the atomic mass of each metal and the percent composition of a known mass aluminum-zinc alloy by determining the moles of H2 gas formed.
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
1 mole of H2(g) is produced for every 1 mole of Zn(s)
2. 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
3 moles of H2(g) is produced for every 2 moles of Al(s)
Both the aluminum and the zinc contained in the alloy react to produce hydrogen gas. The reaction occurs in a test tube and generates hydrogen gas which pushes
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
1 mole of H2(g) is produced for every 1 mole of Zn(s)
2. 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
3 moles of H2(g) is produced for every 2 moles of Al(s)
Both the aluminum and the zinc contained in the alloy react to produce hydrogen gas. The reaction occurs in a test tube and generates hydrogen gas which pushes