std 7 science ch 14 swadhyay full solution

Class 10 Complete Science UP Board 2024 Exam Full Revision and Syllabus | Target 95+

Class 10 Science | Chapter 14 Sources of Energy | Important Question and Quick Revision

There are 5 candidates for mathematics , 7 for science and 3 for arts scholarship . Find the number of ways of give one scholarship either for mathematics or for science or for arts.

a. Write an equilibriu equation for a solution containing CH_(3)COOH and CH_(3)COONa . What effect does CH_(3)COONa have on a solution of CH_(3)COOH ? b. What reagents should be added to a solution to increase i. [CH_(3)COO^(Theta)] ii. [overset(o+)NH_(4)]

A solutions is 10 M in CH_(3)COONa and 1 M in CH_(3)COOH . If pK_(a) of CH_(3)COOH is 4.8 , what is the pH of the solution?

A solution is 10 M in CH_(3)COONa and 1 M in CH_(3)COOH . If pK_(a) of CH_(3)COOH is 4.8 , what is the pH of the solution?

Assertion (A): The pH of an aqueous solution of CH_(3)COOH remains unchanged on the addition of CH_(3)COONa . Reason (R) : The pH of an aqueous solution of CH_(3)COOH remains unchanged on the addition of CH_(3)COONa . Reason (R) : The ionisation of CH_(3)COOH is supressed by the addition of CH_(3)COONa .