Chem Postlab#2

Chem Postlab#2 - 11.30 final pH 4. mustard 4.95 g 37.5 mL...

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Madeline Williams Justin Green Chem 101-582 9/40/06 Exp 2: Post lab Results: Discussion: 1.  NaOH 50 mL in burette KHP 0.2098 g dH2O 10 mL         2 drops phenophaline NaOH 10mL used   2.   NaOH 50 mL in burette HCl 10 mL   4 drops phenophaline 1.14 pH initial 10.1 mL NaOH used 10.74 pH when it turned pink 11.14 final pH   3.  NaOH 49.4 mL in burette 10 mL CH3COOH initial pH 2.64 CH3COOH 2 mL - 3.66 1 mL - 3.93 2 mL - 4.35 2 mL - 4.79 38 mL left in burette - 6.71 pink staying and fading
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Unformatted text preview: 11.30 final pH 4. mustard 4.95 g 37.5 mL NaOH in burette % mass of CH3COOH = ? 40 mL dH2O 2 drops phenophaline initial pH mustard 3.53 final pH 7.53 15.5 mL NaOH added 5. 50 mL NaOH in burette 25 mL CH3COOH initial pH 2.75 Conclusion: To titrate mustard and to make a titration curve. Taking 30 data points and plugging them into Excel to for the titration curve The curve was assembled and presented...
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Chem Postlab#2 - 11.30 final pH 4. mustard 4.95 g 37.5 mL...

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