Question

Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous problem is a destructive environmental pollutant when it is produced by the combustion of sulfur impurities present in fossil fuels. In the atmosphere, sulfur dioxide (SO,(g) can dissolve into with water (H,O(D) droplets to form a sulfurous acid (H,SO,(aq)) solution and return to the ground as acid rain. Write a balanced chemical equation for the production of sulfurous acid by this reaction. 3. Sodium metal (Na(s)) reacts exothermically with water to produce a basic solution of sodium hydroxide (NaOH(aq)) and hydrogen gas (H,(g). The heat released is sufficient to ignite the hydrogen gas produced, which burns in oxygen (O,(g)) to produce water vapor (H,O(g)). Write balanced equations for these two chemical reactions.

Answer 1

Mg(s) + 2 Helaar Mgezagst H₂(g) Se + 4,0 7) 2 HCl + Nay so zla 2 Nadlag) + 2. SO2(g) + H₂ H SO, sulfurous acid 3. QNa sotaho > 2NaOH + Helg) (aq) the evolved ita reaction with oxygen is: 2H₂ + 2Hood)