Calculate the volume of 0.07731 M NaOH needed to titrate
(a)25.00 mL of a solution that is 0.03000 M in HCl and 0.01000 M in H3PO4 to a
bromocresol green end point.
(b)the solution in (a) to a thymolphthalein end point.
(c)30.00 mL of 0.06407 M NaH2PO4 to a thymol-phthalein end point.
(d)25.00 mL of a solution that is 0.02000 M in H3PO4 and 0.03000 M in NaH2PO4 to a thy-molphthalein
end point.
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