there is a difference between molarity (M) and normality (N). You will need to u
ID: 944946 • Letter: T
Question
there is a difference between molarity (M) and normality (N). You will need to understand what normality is and also what a diprotic acid is to complete this exercise.
Titration with 10 ml of 0.1 N oxalic acid, used 10.1ml NaOH solution.
Mixed 30 ml of NaOH + 10 ml EtOAc.
Titrated 10 ml of 0.1 N oxalic acid, which used 16.9ml NaOH+EtOAc solution.
Please calculate the concentration of these solutions?
Titration Data was measured with a 50 mL burette with graduations of 0.1 mL.
All other reagents were measured with a 5 mL pipette with graduations of 0.1 mL.
Explanation / Answer
Titration with 10 ml of 0.1 N oxalic acid, used 10.1ml NaOH solution.
Use N1V1=N2V2
N2=0.1 N oxalic acid
V2= 10 ml
V1=10.1 ml of NaOH
N1=? of NaOH
N1= (N2 x V2)/ V1= (0.1 x 10)/ 10.1= 0.099 N of NaOH
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