To:???? Andrew??Whelton,??Ph.D.,??Brian??Merkersen;??Dept.??Civil??Engineering,??Univ.??of??South??Alabama?? From:???? John??Snow,??Jiminy??Cricket,??Unji??Punji;??CE??374??students?? Date:???? February??19,??2013?? Subject:???? Results??of??Water??pH??and??Alkalinity??Characterization??of??Unknown??Water??Sample?? ??Greetings??Dr.??Whelton:?? ??Below?? we?? have?? provided?? a?? summary?? of?? the?? laboratory?? experiment?? conducted?? on?? February?? 9,?? 2013.?? Please??feel??free??to??contact??us??if??you??have??any??questions.?? ??Regards,?? John,??Jiminy,??and??Unji?? ??Summary??of??Water??pH??and??Alkalinity??Characterization??of??the??Unknown??Water??Sample?? ??Introduction.?? The?? purpose?? of?? this?? experiment?? was?? to?? learn?? and?? apply?? wet?? chemistry?? techniques?? and?? quantify?? the?? alkalinity?? concentration?? of?? a?? water?? sample?? of?? unknown?? origin.?? This?? water?? sample?? was?? provided??by??the??Instructor.??Water??quality??characterization??was??conducted??on??February??9,??2013??from??2:00?? PM????3:14??PM??in??the??Shelby??Hall??Environmental??Engineering??Laboratory.?? The??alkalinity??concentration??of??a??water??(commonly??reported??as??mg/L??as??CaCO3)??represents??the?? buffering?? capacity?? of?? that?? water.?? More?? specifically,?? alkalinity?? enables?? waters?? to?? resist?? water?? pH?? reductions?? when?? acid?? is?? added?? or?? formed?? in??situ.?? Phenolphthalein?? alkalinity?? can?? be?? quantified?? by?? determining??the??amount??of??acid??required??to??reduce??the??water??pH??above??8.3??to??8.3.??Total??alkalinity??is??a?? measure?? of?? the?? total?? quantity?? of?? acid?? required?? to?? reduce?? a?? waters?? pH?? to?? 4.3.?? By?? knowing?? our?? acid?? normality??and??the??volume??of??acid??added??to??a??water??for??targeted??water??pH??reduction,??phenolphthalein?? and?? total?? alkalinity?? levels?? can?? be?? determined.?? Specific?? objectives?? of?? this?? work?? were?? to:?? (1)?? titrate??…