Evaluate the ph at the second stoichiometric point

Reference no: EM13516211

Calculate the pH at the second stoichiometric point when 100 mL of a 0.020 M solution of sulphurous acid (Ka1=1.4*10-2, Ka2=6.3*10-8) is titrated with 1.5 M NaOH.

1) What is the most suitable indicator for this titration?

bromocresol green

thymol blue

methyl red

phenol red

methyl orange

phenolphthalein

bromocresol purple

thymolphthalein

Reference no: EM13516211

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