Verified Answer :

Hagrid

Given:

12.0 M HCl

2.0 liters of a 3.0 M HCl

Required:

volume of concentrated hydrochloric acid

Solution:

M1V1 = M2V2

(12.0 M HCl)V1 = (3.0 M HCl)( 2.0 liters)

V1 = (3.0 M HCl)( 2.0 liters)/ (12.0
M HCl)

V1 = 0.5 liters

Answer: The volume of concentrated HCl solution is 0.5 L

Explanation:

To calculate the volume of the concentrated HCl solution, we use the equation:

\(M_1V_1=M_2V_2\)

where,

\(M_1\text{ and }V_1\) = molarity and volume of the concentrated HCl solution

\(M_2\text{ and }V_2\) = Molarity and volume of the diluted HCl solution

We are given:

\(M_1=12M\\V_1=?L\\M_2=3M\\V_2=2L\)

Putting values in above equation:

\(12M\times V_1=3M\times 2L\\\\V_1=0.5L\)

Hence, the volume of concentrated HCl solution is 0.5 L

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