Question

1.what is the correct form of the conversion factor needed to convert the number of moles of H2 to number of moles of NH3 produced: N2+3H2=2NH3

2. What is the mass of 2.5 X 10^-25 atoms of silicon?

3. What is the theoretical yield of Fe2O3 in moles that can be produced when 3 moles of iron reacts with 2 moles of O2 according to the following equation: 4Fe+3O2=2Fe2O3

Answer 1

1) 3 mol H2/ 1 mol N2

2) there are 2 steps first get the number of moles:

2.5 X 10^-25 atoms of silicon/6.022E23 silicon atoms/mole of silicon=?

?moles of silicon the next step is

?moles of silicon x 28.09 grams Si/1 mol Si(from the periodic table) = grams of Si

3)sorry maybe later no time now


just plug in your values for no.2