Answer: The volume of concentrated solution required is 42 mL
Explanation:
To calculate the molarity of the diluted 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 concentrated solution
[tex]M_2\text{ and }V_2[/tex] are the molarity and volume of diluted solution
We are given:
[tex]M_1=11.9M\\V_1=?mL\\M_2=2.0M\\V_2=250mL[/tex]
Putting values in above equation, we get:
[tex]11.9\times V_1=2.0\times 250\\\\V_1=42mL[/tex]
Hence, the volume of concentrated solution required is 42 mL
Answer to your question is 42.0 ml :)
explanation got it right on test
