File Home Insert Page Layout Formulas Data Review View Help X Cut Calibri 11 AA >শ• Wrap Text General Copy BIU A Merge & Center $% 900 Format Painter Clipboard E Font Alignment. 5 Number Conditional Format as Formatting Table▾ Г Styles B11 × ✓ fx 22.5 B C D E F G H J K L M N 1 PH 2 Moles NaOH 3 Moles Unknown Acid 4 Molarity Unknown Acid 5 Total Moles Acid 6 Molar Mass of Acid + 7 Initial NaOH (mL) 42.5 8 Initial pH 2.91 9 Volume 1st half 7.5 10 Volume 1st EP 12.5 11 Volume 2nd half 22.5 12 Volume 2nd EP 26.5 13 14 15 16 17 18 19 20 21 22 23 24 Sheet1 + Ready About starting quantities Use about 0.120 g of the unknown diprotic acid dissolved in 100 mL of distilled water. Note the concentration of the standardized NaOH solution All burette readings need to be recorded to two decimal places H4 Diprotic Acid Oxalic Acid Formula H2C2O4 Molecular weight Ka1 Ka2 90 g/mol 6.0 x 10-2 6.1 x 10-5 Malonic Acid H2C3H2O4 104 g/mol 1.5 x 10-3 2.0 x 10-6 Maleic Acid H2C4H2O4 116 g/mol 1.2 x 10-2 5.9 x 10-7 Malic Acid H2C4H4O5 134 g/mol 3.5 x 10-4 6.3 x 10-6 Tartaric Acid H2C4H4O6 150 g/mol 1.0 x 10-3 4.6 x 10-5 (200.8, 8.570) (114.2.4.375) Time: 200 s pH: 8.96 Time: 114 s pH: 5.06 Time() Time (s 300 Include an annotated calculation showing how you determined the K₁ and Kǝz (i.e. How did you find Kai and Ka2?). Provide a percent error comparing your experimental molar mass to the accepted value. ·0225mL x.1M = 2,25 × 103 mol NaOH LLS 10 mul Acid 1125×15 D IL * ASSAS t 01125M yej + 70 D 1.129 F wular st = mols Acit + ว A A 10/125001 = (1295) ✓ ' DAS Q 68 12-1.44 A 94.044 1.125×103 = 125 molar map Molar Mass = 106 g/mol pure, ubstances mixed AST, V A A 4x Kl I 2 40096) sp C +25 2. (04) 2 + 20H x(2x2)=111 I olbot C0160+22 080 0 5.2851×15 X 00101 25 (0080+5)/45) (0.03214) = 3.00×1017 4.07252 5.78645×10.5 2.177 32104 2.732×167 (0190142) (.0020)(45)