Answered

Find solutions to your questions with the help of IDNLearn.com's expert community. Get the information you need from our community of experts who provide accurate and thorough answers to all your questions.

Enter your answer in the provided box. calculate the ph of a 0. 011 m naf solution. (ka for hf = 7. 1 × 10−4. )

Sagot :

pH value of a 0. 011 m naf solution is 8.57.

Solution

This problem uses the relationship between Kb and the dissociation constants which is expressed as Kw = KaKb. Calculations are as follows:

Kb = KaKb

1.00 x 10^-14 = 7.2 x 10^-4(x)

x = 1.39 x 10^-11

We now need to calculate the [OH¯] using the Kb expression:

1.39 x 10^-11 = x^2 / (0.30 - x)

The denominator can be neglected. Thus, x is 3.73 x 10^-6.

pOH = -log 3.73 x 10^-6 = 5.43

pH = 14-5.43 = 8.57

To learn more ph of naf solution refer here:

https://brainly.com/question/1411794

#SPJ4

Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. Thanks for visiting IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more helpful information.