For the reaction #C+2H_2 -> CH_4#, how many grams of hydrogen are required to produce 0.6 moles of methane, #CH_4#?

1 Answer
Mar 14, 2016

Answer:

#2.40# grams #H_2#

Explanation:

  1. Start by determining the mole ratio of #CH_4# and #H_2#; it can be on these form and use the appropriate ratio depending on your desired unit;
    #(1 mol CH_4)/(2 mol H_2)#
    or
    #(2 mol H_2)/(1 mol CH_4)#
  2. Once known, multiply the value to the mole of #CH_4# as provided in the problem to find the mole of #H_2#;
    0.6 mol #CH_4# ##x## ?
  3. Then, find the molar mass of #H_2# to use to find the mass of #H_2# needed to produce #CH_4#.
  4. The answer is #2.4# grams of #H_2#