Answer :
Answer: The concentration of the chemist's working solution is 0.00268 M
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
According to the neutralization law,
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1[/tex] = molarity of stock solution = 10.7 mmol/L = 0.0107 mol/L [tex]1mmol=10^{-3}mol[/tex]
[tex]V_1[/tex] = volume of stock solution = 90.0 ml
[tex]M_2[/tex] = molarity of working solution = ?
[tex]V_2[/tex] = volume of working solution = 360 ml
[tex]0.0107\times 90.0=M_2\times 360[/tex]
[tex]M_2=0.00268M[/tex]
Thus the concentration of the chemist's working solution is 0.00268 M