Dive into the world of knowledge and get your queries resolved at IDNLearn.com. Our Q&A platform is designed to provide quick and accurate answers to any questions you may have.
Sagot :
The value of [tex]K_{a}[/tex] for HF is, 3.5 x [tex]10^{-4} M[/tex]
What is an aqueous solution?
The aqueous solution definition means simply that something has been dissolved in water. The aqueous symbol is (aq). Aqueous solution definition: something is dissolved in water.
Solution : Given,
pH = 2.03
Concentration of HF = 0.25 M
First, we have to calculate the concentration of [tex]H^{+}[/tex] ion.
pH=-log [[tex]H^{+}[/tex]]
2.03=-log [[tex]H^{+}[/tex]]
[tex]H^{+}[/tex]= 9.3 x [tex]10^{-3} M[/tex]
Now we have to calculate the value of [tex]K_{a}[/tex] for HF.
The equilibrium reaction will be:
[tex]HF\leftrightharpoons \ H^{+}+F^{-}[/tex]
Concentration of [tex]H^{+}[/tex] = Concentration of [tex]F^{-}[/tex]= 9.3 x [tex]10^{-3} M[/tex]
The expression of [tex]K_{a}[/tex] for HF will be,
[tex]k_{a} =\frac{[F]^{-} [H]^{+} }{HF}[/tex]
[tex]K_{a}[/tex] = 3.5 x [tex]10^{-4} M[/tex]
Therefore, the value of [tex]K_{a}[/tex] for HF is, 3.5 x [tex]10^{-4} M[/tex]
Learn more about the aqueous solution here:
https://brainly.com/question/14097392
#SPJ4
Thank you for participating in our discussion. We value every contribution. Keep sharing knowledge and helping others find the answers they need. Let's create a dynamic and informative learning environment together. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and come back for more insightful information.