Question

What volume of 0.6m hcl has enough hydrochloric acid to react exactly with 25 ml of aqueous naoh having concentration of 0.5m?

Answer 1

20.8 ml of HCl is added to react exactly with 25 ml of aqueous NaOH having concentration of 0.5M

Explanation:

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

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $HCl$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

We are given:

$n_1=1\\M_1=0.6M\\V_1=?mL\\n_2=1\\M_2=0.5M\\V_2=25mL$

Putting values in above equation, we get:

$1\times 0.6\times V_1=1\times 0.5\times 25\\\\V_1=20.8mL$

Thus 20.8 ml of 0.6m HCl has enough hydrochloric acid to react exactly with 25 ml of aqueous NaOH having concentration of 0.5m.

Learn more about neutralization law:

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