Peter M. answered • 05/06/21

Organic Chemistry PhD Student Tutoring For Over 6 Years!

* 1.)* S + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2O

In the above equation how many moles of H2SO4 can be made when 56 moles of HNO3 are consumed?

**We can use the mole ratio, which is the coefficients in the balance chemical equation to interconvert between species in the chemical reaction. Essentially, we take the ratio of the moles of each specie in the chemical equation and multiply by it. Remember, to cross cancel such that the units cancel out and you end up in the units of your desired product.**

**56 moles HNO**_{3}** * (1 mol H**_{2}**SO**_{4}** / 6 mol HNO**_{3}**) = 9.33 mol H**_{2}**SO**_{4}

* 2.)* S + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2O

In the above equation how many moles of water can be made when 57 moles of HNO3 are consumed?

**57 moles HNO**_{3}** * (2 mol H**_{2}**O / 6 mol HNO**_{3}**) = 19 mol H**_{2}**O**