please show solution (with step-by-step) and answer so I can see how the answer

Question

please show solution (with step-by-step) and answer so I can see how the answer was derived.

3. 25.00 mL of a nitric acid solution of unknown concentration is pipetted into a 125-mL Erlenmeyer flask and 2 drops of phenolphthalein are added. A 0.150M sodium hydroxide solution (the titrant) is used to titrate the nitric acid buret in causing a color change of the phenolphthalein, what is the molar concentration of the nitric acid solution solution (the analyte). If 12.75 mL of the titrant is dispensed from a

Explanation / Answer

A:- Balanced chemical equation,

HNO3      +          NaOH      ------------------>    NaNO3        +         H2O

M1 = ?                       M2 = 0.150 M

V2 = 25.0 mL            V2 = 12.75 mL

n1 = 1                       n2 = 1

(M1V1 / n1) = (M2V2 / n2)

M1 = (M2V2 / n2) (n1 / V1)

     = (0.150 * 12.75 / 1) * (1 / 25.0)

     = 0.0765 M

The molar concentration of Nitric acid = 0.0765 M

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