I am doing a precipitation titration of cobalt chloride, How do I find the concentration of NaOH added?
The volume of NaOH was 18.03mL and the volume of CoCl2 was 38.13 mL, How would I find the concentration?
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The equation for the chemical reaction between cobalt chloride and sodium hydroxide is:
CoCl2 (aq) + 2NaOH (aq) → 2NaCl (aq) + Co(OH)2 (s)
To find the concentration in terms of molarity add the total volume =18.03mL+38.13mL =56.16mL
Now,To find the concentration of NaOH added ,you should have taken the definite weight of NaOH in the experiment.
Suppose the weight of NaOH taken =x gram.
From the given weight ,determine the mole of NaOH =weight taken/Molecular weight =x/40 mole
Now the concentration of NaOH is expressed in mol/liter
Volume of the solution is 56.16mL =56.16/1000 L=.05616L
Concentration of NaOH =
Here substitute the value of weight taken in the experiment to determine the concentration of NaOH.
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