Graded Assignment
Lab Report: Stoichiometry of Chemical Reactions
Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for full
credit.Total score:
of 20 points
(Score for Question 1: of 2 points)
1. What is the balanced equation that represents the reaction between hydrogen and nitrogen to make ammonia
(NH3)?
Answer:
N2+3H2 2NH3
(Score for Question 2: of 5 points)
2. How many molecules of ammonia can be created when four molecules of nitrogen are combined with four
molecules of hydrogen? Include a drawing of the molecules in your answer.
Answer:
the number of ammonia molecules formed are 8/3|
Nitrogen gas
Score for Question 3:
G.
-
Hydrogen gas
of 5 points)
3. What ratio of nitrogen and hydrogen molecules would result in no left-over reactants? Explain your answer.
Answer: the balanced equation is N2+3H2 2N H3,, 1 molecule of Nitrogen combines with 3 molecules
of hydrogen to make 2 molecules of ammonia. And the ratio of nitrogen and hydrogen molecules
should be 1:3. so the answer is 1:3
Ammonia gas
Score for Question 4:
of 6 points)
4. If 100.0g of nitrogen is reacted with 100.0g of hydrogen, what is the excess reactant? What is the limiting
reactant? Show your work.
112NH3 1 molecule of nitrogen reacts with 3 molecules of ANSWERS PROVIDED