84.9k views
5 votes
Please Help Quick ASAP Hurry Chemistry Unit 4 Review Sheet

N2(g) + 3H2(g) → 2NH3(g)

b. How many grams of NH3 result from this reaction?


Work:____________


Ans:_________

Please Help ASAP please

User Nazerke
by
7.8k points

1 Answer

3 votes

N2(g) + 3H2-> 2NH3(g) This is the balanced equation

Note the mole ratio between N2, H2 and NH3. It is 1 : 3 : 2 This will be important.

moles N2 present = 28.0 g N2 x 1 mole N2/28 g = 1 mole N2 present

moles H2 present = 25.0 g H2 x 1 mole H2/2 g = 12.5 moles H2 present

Based on mole ratio, N2 is limiting in this situation because there is more than enough H2 but not enough N2.

moles NH3 that can be produced = 1 mole N2 x 2 moles NH3/mole N2 = 2 moles NH3 can be produced

grams of NH3 that can be produced = 2 moles NH3 x 17 g/mole = 34 grams of NH3 can be produced

sorry if this isn't the right answer

User Ofirbt
by
9.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.