Answer: The volume of stock HCl solution required to make laboratory solution will be 0.25L
Explanation:
To calculate the volume of stock solution required to make the laboratory solution, we use the equation:
\(M_1V_1=M_2V_2\)
where,
\(M_1\text{ and }V_1\) are the molarity and volume of stock solution.
\(M_2\text{ and }V_2\) are the molarity and volume of laboratory solution.
We are given:
\(M_1=12M\\V_1=?L\\M_2=1.5M\\V_2=2L\)
Putting values in above equation, we get:
\(12\times V_1=1.5\times 2\\\\V_1=0.25L\)
Hence, the volume of stock HCl solution required to make laboratory solution will be 0.25L
