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In a research project, a scientist adds 0.1 mole of HCN, 0.1 mole of H3O , and 0.1mole of CN- to water to make a total volume of 1 L. Will this reaction proceed to a greater extent in the forward direction or in the reverse direction

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ajeigbeibraheem

Answer:

Reverse; since the value of Q is greater than the value of K

Explanation:

The equation for the reaction can be expressed as:

[tex]HCN + H_2 O[/tex]     ⇄    [tex]H_3O^+ +CN^{-}[/tex]                [tex]k_a = 6.2 * 10^ {-10[/tex]

[tex]Q = \frac{[H_3O^+][CN^-]}{[HCN]}[/tex]  

[tex]Q = \frac{(0.1)(0.1)}{(0.1)}[/tex]

Q = 0.1

[tex]k_a = 6.2 * 10^ {-10[/tex]

Q > [tex]K_{a}[/tex]

If the value of Q is greater than [tex]K_{a}[/tex] Value; the reaction will definitely shift to reverse direction.

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