Question #df311

1 Answer
Ernest Z.
Jul 6, 2017

You will need 9.0 L of #"N"_2#.

Explanation:

For this problem, we can use a modern statement of Gay-Lussac's Law of Combining Volumes:

If pressure and temperature are constant, the ratio of the volumes of the reactant gases and the products is the same as their molar ratios.

The balanced equation for the reaction is

#color(white)(ll)"N"_2 + "3H"_2 → "2NH"_3#
#color(white)(ll)"1 L"color(white)(mmmmmll)"2 L"#

According to Gay-Lussac, #"1 L"color(white)(l) "of N"_2# forms #"2 L of NH"_3#.

∴ #"Volume of N"_2 = 18 color(red)(cancel(color(black)("L" color(white)(l)"NH"_3))) × ("1 L"color(white)(l) "N"_2)/(2 color(red)(cancel(color(black)("L"color(white)(l) "NH"_3)))) = "9.0 L"color(white)(l)"NH"_3#

Related questions
See all questions in Gas Stoichiometry
Impact of this question
1548 views around the world
You can reuse this answer
Creative Commons License