Taking into account the definition of dilution, the molarity of the unknown solution is 0.133 M.
Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.
In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
In this case, you know:
Replacing in the definition of dilution:
Ci× 10.5 mL= 0.172 M× 80 mL
Solving:
Ci= (0.172 M× 80 mL)÷ 10.5 M
Ci= 0.133 M
In summary, the molarity of the unknown solution is 0.133 M.
Learn more about dilution:
brainly.com/question/6692004
brainly.com/question/16343005
brainly.com/question/24709069
#SPJ1
