How many ml of 0.5M of HNO3 would be needed to react with 85ml of 0.75M of KOH

127.5ml

Explanation:

To calculate the volume of acid, we use the equation given by neutralization reaction:

where,

are the n-factor, molarity and volume of acid which is

are the n-factor, molarity and volume of base which is KOH.

We are given:

Putting values in above equation, we get:

Thus 127.5 ml of 0.5M of HNO3 would be needed to react with 85ml of 0.75M of KOH

the correct answer would be b) volume versus temperature, because they are also directly proportional.