Answer: The volume of stock solution needed is 0.016 L
Explanation:
To calculate the volume of stock solution, we use the equation:
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1\text{ and }V_1[/tex] are the molarity and volume of the stock solution
[tex]M_2\text{ and }V_2[/tex] are the molarity and volume of diluted solution
We are given:
[tex]M_1=12M\\V_1=?L\\M_2=0.10M\\V_2=2L[/tex]
Putting values in above equation, we get:
[tex]12\times V_1=0.1\times 2\\\\V_1=0.016L[/tex]
Hence, the volume of stock solution needed is 0.016 L