Which statement below accurately describes what happened in Trial 2 (highlighted in light yellow)? The scientist started with equal moles each of N, and H2, and the N, was completely used up but there was H, left over The scientist started with equal moles each of N, and H2, and the H, was completely used up but there was N, left over The scientist started with more N, than H, and the H, was completely used up but there was N2 left over The scientist started with less N, than H, and both elements were completely used up

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Which statement below accurately
describes what happened in Trial 2
(highlighted in light yellow)?
The scientist started with equal
moles each of N, and H2, and
the N, was completely used up
but there was H2
left over
The scientist started with equal
moles each of N, and H,, and
the H2 was completely used up
but there was N, left over
The scientist started with more
N, than H2, and the H, was
completely used up but there
was N2 left over
The scientist started with less
N, than H2, and both elements
were completely used up
Transcribed Image Text:Which statement below accurately describes what happened in Trial 2 (highlighted in light yellow)? The scientist started with equal moles each of N, and H2, and the N, was completely used up but there was H2 left over The scientist started with equal moles each of N, and H,, and the H2 was completely used up but there was N, left over The scientist started with more N, than H2, and the H, was completely used up but there was N2 left over The scientist started with less N, than H2, and both elements were completely used up
An industrial chemist is attempting to
optimize (improve) her method for
producing ammonia, which is used as a
fertilizer. Ammonia (NH3) is made
using the following unbalanced
skeleton equation:
_?_ N, + _?_ H,→ _?_ NH3
She conducts various trials of the
reaction. Some finish, and some she
stops partway. Then she collects data
on how much of the reactants (N, and
H2) and product (NH3) she started with
and ended with in each trial. Her data
is in the table below.
Table 1: Ammonia Reaction Data
Trial
Initial moles
Final moles
Change in moles
N2
H2
NH,
H2
NH,
N2
H,
NH,
Trial 1
1.00
1.00
0.00
0.80
0.40
0.40
0.20
-0.60
+0.40
Trial 2
3.00
3.00
0.00
2.00
0.00
2.00
-1.00
-3.00
+ 2.00
Trial 3
5.00
5.00
0.00
4.50
3.50
1.00
-0.50
1.50
+1.00
Trial 4
6.00
6.00
0.00
4.00
0.00
4.00
- 2.00
6.00
+4.00
Transcribed Image Text:An industrial chemist is attempting to optimize (improve) her method for producing ammonia, which is used as a fertilizer. Ammonia (NH3) is made using the following unbalanced skeleton equation: _?_ N, + _?_ H,→ _?_ NH3 She conducts various trials of the reaction. Some finish, and some she stops partway. Then she collects data on how much of the reactants (N, and H2) and product (NH3) she started with and ended with in each trial. Her data is in the table below. Table 1: Ammonia Reaction Data Trial Initial moles Final moles Change in moles N2 H2 NH, H2 NH, N2 H, NH, Trial 1 1.00 1.00 0.00 0.80 0.40 0.40 0.20 -0.60 +0.40 Trial 2 3.00 3.00 0.00 2.00 0.00 2.00 -1.00 -3.00 + 2.00 Trial 3 5.00 5.00 0.00 4.50 3.50 1.00 -0.50 1.50 +1.00 Trial 4 6.00 6.00 0.00 4.00 0.00 4.00 - 2.00 6.00 +4.00
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