## anonymous 3 years ago How many grams of H2 are needed produced in 11.13 grams of of NH3

1. aaronq

can you write an equation for the reaction and balance it?

2. anonymous

3H2+N2$3H _{2}+N _{2}\rightarrow2NH _{3}$

3. anonymous

ignore the first part

4. aaronq

okay good stuff, now covert the grams of NH3 to moles

5. anonymous

ok so find the molar mass?

6. aaronq

well yeah, then find the moles moles=mass/molar mass

7. anonymous

17.034

8. anonymous

.653

9. aaronq

okay so you have this 3H2+N2→2NH3 x 0.653 now, you have to use the coefficients to form a ratio between the 2 substances, since they're not in a one to one relationship. aA + bB -> cC moles of C/c = moles of A/a

10. anonymous

see i dont understand that

11. aaronq

all you have to do is normalize each one by diving the amount of moles by it's respective coefficient $\frac{ moles of H _{2} }{ 3 }=\frac{ moles of NH _{3} }{ 2 }$

12. aaronq

then solve for whatever you're looking for