The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator....

The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.210 M NaOH.

Expert Solution

It is digital titration in the diagram volume of NaOH = 10.5ml

HCl + NaOH ---------------> NaCl + H2O

HCl NaOH

M1 = M2 = 0.21M

V1 = 10ml V2 = 10.5ml

n1 = 1 mole n2 = 1 mole

M1V1/n1 = M2V2/n2

M1 = M2V2n1/n2V1

= 0.2*10.5*1/1*10 = 0.21M

concentration of HCl = 0.21M

queen_honey_blossom answered 2 years ago

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