Calculate the ph of a solution that contains 7.8 x 10-2 m oh at 25c a) 1.28 b) 5.11 o c) 12.9 d) 8.89

Answer : The correct option is, (C) 12.9

Explanation:

pOH : It is defined as the negative logarithm of hydroxide ion concentration.

Expression used :

First we have to calculate the pOH.

Now we have to calculate the pH.

Therefore, the pH of a solution is 12.9

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)