What volume of 0.0105-m hbr solution is be required to titrate 125 ml of a 0.0100-m ca(oh)2 solution?
ca(oh)2 + 2hbr ? cabr2 + 2h2o

The volume of HBr solution comes out to be 238.1 mL

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

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

We are given:

Putting values in above equation, we get:

Hence, the volume of HBr solution comes out to be 238.1 mL

c. orbital shape i hope this is correct