Question
Question: A certain zero order reaction has k = 0.025 M s<sup>–1</sup> for the disappearance of A. What will b...
A certain zero order reaction has k = 0.025 M s–1 for the disappearance of A. What will be the concentration of A after 15 seconds if the initial concentration is 0.5 M?
A
0.5 M
B
0.32 M
C
0.12 M
D
0.06 M
Answer
0.12 M
Explanation
Solution
x = kt = 0.025 × 15 = 0.375 M
Remaining conc. = 0.5 – 0.375 = 0.125 M