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afitzgerald
05.11.2019 •
Chemistry
In your own words, what was the purpose of this lab? |
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Ответ:
answer depends on what lab you are talking about
Explanation:
there are millions of labs out there
Ответ:
Depends what the topic is
Ответ:
Explanation:
The given data is as follows.
According to the ideal gas equation, PV = nRT
or, P =
Also, we know that
Density =![\frac{mass}{volume}](/tpl/images/0554/5378/cfd74.png)
So, P = MRT
and, M =![\frac{P}{RT}](/tpl/images/0554/5378/c2599.png)
=![\frac{9.0 atm}{0.0820 L atm/mol K \times 298 K}](/tpl/images/0554/5378/61dc3.png)
=![\frac{9.0}{24.436}](/tpl/images/0554/5378/62bb5.png)
= 0.368 mol/L
Now, we will calculate the cell potential as follows.
E =![E^{o} - \frac{0.0591}{n} log \frac{[Co^{2+}]^{2}[Cl_{2}]}{[Co^{3+}][Cl^{-}]^{2}}](/tpl/images/0554/5378/cfa28.png)
=![0.483 - \frac{0.0591}{2} log \frac{(0.433)^{2}(0.368)}{(0.173)(0.306)^{2}}](/tpl/images/0554/5378/424c7.png)
=![0.483 - 0.02955 log \frac{0.0689}{0.0162}](/tpl/images/0554/5378/8c80a.png)
=![0.483 - 0.02955 \times 0.628](/tpl/images/0554/5378/ea29b.png)
= 0.483 - 0.0185
= 0.4645 V
Thus, we can conclude that the cell potential of given cell at
is 0.4645 V.