g 10.00 mL of phosphoric acid (H3PO4) are titrated with 0.1000 M sodium hydroxide. 15.00 mL of the sodium hydroxide solution are used in this experiment. Determine the molarity of phosphoric acid.

The molarity of phosphoric acid is 0.05 M

Explanation:

A neutralization reaction is defined as the reaction in which an acid reacts with a base to form a salt and water molecule.

At equivalence, moles of acid becomes equal to the moles of base. The equation for the neutralization follows:

             ........(1)

where,

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

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

Given values:

Plugging values in equation 1:

Hence, the molarity of phosphoric acid is 0.05 M

6.4 cm (max) - 25 cm (min)

it is b that is the answer.