This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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You're on a roll — here are the answers to question 30: 30. Study the diagram and answer the following questions. a) Which gas is being collected in the gas jar? When granulated zinc reacts with dilute hydrochloric acid, hydrogen gas is produced. The gas being collected is Hydrogen gas (H_2). b) Write down the balanced chemical reaction involved in this process. The reaction between zinc and dilute hydrochloric acid produces zinc chloride and hydrogen gas. Zn(s) + 2HCl(aq) → ZnCl_2(aq) + H_2(g) The balanced chemical reaction is Zn(s) + 2HCl(aq) → ZnCl_2(aq) + H_2(g). c) Which gas will be formed if conc. H₂SO₄ is kept instead of dilute H₂SO₄ acid? If concentrated sulfuric acid (conc. H₂SO₄) is used instead of dilute sulfuric acid with zinc, the concentrated acid acts as an oxidizing agent. In this case, sulfur dioxide gas is formed, not hydrogen. Zn(s) + 2H_2SO_4(conc.) → ZnSO_4(aq) + SO_2(g) + 2H_2O(l) The gas formed will be Sulfur dioxide (SO_2). What's next?