Zn = 0.1 mol, HCl = 0.2 mol. Stoichiometric mixture. H₂ = 0.1 mol. Volume = 0.1 × 22.4 = 2.24 dm³.
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28. During the reaction of 13.5 g of aluminium with 16 g of sulphur (2Al + 3S → Al₂S₃), the mass of aluminium sulphide formed is (Al = 27, S = 32)
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30. A key characteristic of the limiting reactant is that its amount determines the
