Questions 13-15 refer to the information below. A $$\(0.50 \mathrm{~g}\)$$ sample of $$\(\mathrm{Mg}(s)\)$$ was placed in a solution of $$\(\mathrm{HCl}(\mathrm{aq})\)$$, where it reacted completely. In another experiment, a small piece of $$\(\operatorname{Mg}(s)\)$$ is weighed, then placed in a flask containing excess $$\(1 \mathrm{M} \mathrm{HCl}(\mathrm{aq})\)$$. The student wants to determine number of moles of gas produced. Which of the following is the best way to conduct the experiment for accurate data collection?

Answer:

Knowledge points:

Solution: