help@askiitians.com

+91-87964 74404

Grade 12th passDiscuss with colleagues and IITians

the pka of weak acid,HA is 4.80,and pkb of weak acid,BOH is 4.78,then pH of an aquous solution of corresponding solution of BA is --? and explain clearly?

mannam kiran kumar

13 Years agoGrade 12th pass

2 Answers

saisandeep Mattaparthi

13 Years ago

you have to use the formula 1/2[pkw+pka-pkb]

substituting these values you get 7.01 take pkw as 14

KADAMBALA VAMSI

13 Years ago

dear kiran

......0.5(7+4.8-4.78)

....0.5(7.02)

.......then calculate your self

bye.................kiran

Are core branches(Mechanical) in Top 3 NIT worth it ?

discuss with colleagues and iitians

1 Answer Available

Last Activity: 3 Years ago

My rank in JEE Advanced 2022 is 1871. Should I go for IIT Guwahati ECE or IIT Kanpur Mechanical and try for a branch change to CS or Electrical Engineering? Is changing your branch very difficult?

discuss with colleagues and iitians

1 Answer Available

Last Activity: 3 Years ago

Can i sacrifice board exams for jee mains as board exams are no where valueable as cuet and other will be seen for admission

discuss with colleagues and iitians

1 Answer Available

Last Activity: 4 Years ago

Is a student studying in IGCSE syllabus eligible for taking IOQP or IOQJS?

discuss with colleagues and iitians

1 Answer Available

Last Activity: 4 Years ago

I have wasted my 11th? Is it still possible to get into my dream iit? Do i have to cover 11 th syllabus first? When and how can i finish it?

discuss with colleagues and iitians

1 Answer Available

Last Activity: 4 Years ago

View all Questions