Question

42. Hydrochloric acid can dissolve solid iron according to the reaction: Fe(s) + 2 HCl(aq) \rightarrow FeCl_2(aq) + H_2(g) What minimum mass of HCl in grams dissolves a 2.8-g iron bar on a padlock? How much H$_2$ is produced by the complete reaction of the iron bar?

          42. Hydrochloric acid can dissolve solid iron according to the reaction:
Fe(s) + 2 HCl(aq) \rightarrow FeCl_2(aq) + H_2(g)
What minimum mass of HCl in grams dissolves a 2.8-g iron bar on a padlock? How
much H$_2$ is produced by the complete reaction of the iron bar?

42. Hydrochloric acid can dissolve solid iron according to the reaction:
Fe(s) + 2 HCl(aq) →FeCl2(aq) + H2(g)
What minimum mass of HCl in grams dissolves a 2.8-g iron bar on a padlock? How
much H2 is produced by the complete reaction of the iron bar?

Added by Mark W.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Zubair Abdulla

11/27/2020

Step 1

85 g/mol. The molar mass of HCl is 36.46 g/mol. The molar mass of $H_2$ is 2.02 g/mol. Show more…

Show all steps

Thanks for your feedback!

42. Hydrochloric acid can dissolve solid iron according to the reaction: $Fe(s) + 2HCl(aq) \rightarrow FeCl_2(aq) + H_2(g)$ What minimum mass of HCl in grams dissolves a 2.8-g iron bar on a padlock? How much $H_2$ is produced by the complete reaction of the iron bar?