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Oxana [17]
3 years ago
8

When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?

Chemistry
2 answers:
Anni [7]3 years ago
6 0
C. -1...hope that's right :)...
Vladimir [108]3 years ago
4 0
When potassium forms an ion, it will carry a +1 charge because it lost its electron. Also it is in group one of the periodic table which means it will have a +1 charge.
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Answer : The correct option is, (E) 7.8 atm

Explanation :

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The partial pressure of O_2 = 5.00 atm

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The balanced equilibrium reaction is,

                               N_2(g)+O_2(g)\rightleftharpoons 2NO(g)

Initial pressure     8.00      5.00            0

At eqm.               (8.00-x) (5.00-x)        2x

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{NO})^2}{(p_{N_2})(p_{O_2})}

Now put all the values in this expression, we get :

0.0025=\frac{(2x)^2}{(8.00-x)\times (5.00-x)}

By solving the terms, we get:

x=0.15atm

The equilibrium partial pressure of N_2 = (8.00 - x) = (8.00 - 0.15) = 7.8 atm

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