Agas diffuses 1/6 times faster than hydrogen gas (h2).

what is the molar mass of the gas?

= 72 g

Explanation:

In this case; The other gas is heavier than hydrogen,

Therefore;  1/6 = √MM of H2 /√ MM of unknown gas

= 1/6 = √2/√x

= 1/36 = 2/x

x = 72

  = 72 g

Therefore; the molar mass of the other gas is 72 g

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2