1)Mass to Moles: Moles in 84.6 g of CO2 2)Particles to Moles: Moles for 3.72*1024 atoms of Fe

3)Gas Volume (at STP) to Moles: 18.6 L of O2 to moles

4)Moles to particles: Molecules in 0.64 moles of CH4

5)Moles to Gas Volume(at SPT): Volume of 2.6 mol of NO2

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

particle   p is an electron and particle q is a neutron