Calculate how many moles of NH3 form when 3.55 moles of N2H4 completely react according to the equation: 3N2H4 (l) ---> 4NH3 (g) + N2 (g) ?
What we're doing here is calculating basic mole-mole relationships, something that you'll be doing quite a bit!
The steps to solving mole-mole problems like this are
write the balanced chemical equation for the reaction (this is given)
divide the number of moles of the given known substance (
#3.55#) by that substance's coefficient in the chemical equation ( #3#)
multiply that number by the coefficient of the substance you're trying to find (
Using simple dimensional analysis, it looks like this:
Thus, if the reaction goes to completion,