A30.00 ml sample of hbr was titrated using 0.1756 m naoh. determine the concentration of the hbr sample if 17.52 ml of naoh was required to reach the endpoint in the titration.

The concentration of HBr sample is 0.1025 M

Explanation:

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

where,

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

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

We are given:

Putting values in above equation, we get:

Hence, the concentration of HBr sample is 0.1025 M

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons