CBSE Class 11-science Answered
Chemistry doubt
![question image](http://images.topperlearning.com/topper/new-ate/top_mob15868555391702340792ad706bc7-25be-4e71-9924-2bd81a9e7479.jpg)
Asked by achamerahul2 | 14 Apr, 2020, 14:42: PM
Equilibrium concentration is given, To calculate pH, read the first statement - 'First dissociation to be 100% and second dissociation to be 50%', Which clearly means dissociation is reduced by half so degree of dissociation would be=0.5
![left square bracket O H to the power of minus right square bracket equals C alpha
left square bracket O H to the power of minus right square bracket equals 8 cross times 10 to the power of negative 3 space end exponent cross times 0.5
space space space space space space space space space space equals 4 cross times 10 to the power of negative 3 end exponent space M
p O H equals negative log left parenthesis 4 cross times 10 to the power of negative 3 end exponent right parenthesis
p O H equals 2.4
p H equals 14 minus 2.4
p H equals 11.6](https://images.topperlearning.com/topper/tinymce/cache/aa6e6d789eae350528f769a971f0c6a6.png)
Answered by Ravi | 15 Apr, 2020, 21:06: PM
Concept Videos
CBSE 11-science - Chemistry
Asked by sarojlaxmiacharjya | 03 Jan, 2022, 20:50: PM
CBSE 11-science - Chemistry
Asked by cjam41665 | 09 Oct, 2021, 23:11: PM
CBSE 11-science - Chemistry
Asked by rishika62124 | 03 Mar, 2021, 05:02: AM
CBSE 11-science - Chemistry
Asked by jyotijhajharia39 | 06 Jan, 2021, 23:41: PM
CBSE 11-science - Chemistry
Asked by nsaikumar33 | 15 Aug, 2020, 11:50: AM
CBSE 11-science - Chemistry
Asked by swati2678 | 10 Aug, 2020, 13:58: PM
CBSE 11-science - Chemistry
Asked by achamerahul2 | 17 Apr, 2020, 10:50: AM
CBSE 11-science - Chemistry
Asked by achamerahul2 | 17 Apr, 2020, 10:44: AM
CBSE 11-science - Chemistry
Asked by achamerahul2 | 14 Apr, 2020, 14:42: PM
CBSE 11-science - Chemistry
Asked by SanskarAgarwal86 | 29 Feb, 2020, 04:36: AM