The mass of a hydrogen atom ( 1 1 H ) is 1.007825 arm; that of a tritium atom ( 1 3 H ) is 3.01605 amu; and that of an a particle is 4.00150 amu. How much energy in kilojoules per mole of 2 4 He produced is released by the following fusion reaction: 1 1 H + 1 3 H → 2 4 He
The mass of a hydrogen atom ( 1 1 H ) is 1.007825 arm; that of a tritium atom ( 1 3 H ) is 3.01605 amu; and that of an a particle is 4.00150 amu. How much energy in kilojoules per mole of 2 4 He produced is released by the following fusion reaction: 1 1 H + 1 3 H → 2 4 He
The mass of a hydrogen atom
(
1
1
H
)
is 1.007825 arm; that of a tritium atom
(
1
3
H
)
is 3.01605 amu; and that of an a particle is 4.00150 amu. How much energy in kilojoules per mole of
2
4
He
produced is released by the following fusion reaction:
1
1
H
+
1
3
H
→
2
4
He
One liter of N2(g) at 2.1 bar and two liters of Ar(g) at 3.4 bar are mixed in a 4.0 liter flask to form an ideal gas mixture. Calculate the value of the final pressure of the mixture if the initial and final temperature of the gases are the same. Repeat this calculation if the initial temperature of the N2(g) and Ar(g) are 304 K and 402 K, respectively, and the final temperature of the mixture is 377 K.
10
5
4. These four 'H NMR spectra were recorded from different isomers with molecular formula
CsH,CIO. They all contain a carbonyl group. Determine the structure of the different isomers.
0
10
5
0
10
5
10
9
8
7
6
5
4
3.
1
0
9
10
10
66
9
0
10
9
10
5
1
8
7
6
5
3
2
-a
8
7
6
5
1
10
9
8
7
6
5
22
2
1
0
3
2
16
1
0
3
2 1
2
6
0
Use the expression below to
⚫ calculate its value and report it to the proper number of significant digits (you may need to
round your answer).
⚫ calculate the % error (or % relative error or % inherent error)
⚫ calculate the absolute error.
(20.54±0.02 × 0.254±0.003) / (3.21±0.05) =
Value:
% Error:
Absolute error: ± |
% (only 1 significant digit)
(only 1 significant digit)
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