aspirin - 0.0965 mol/L Salicylic Acid: deep, dark purple...

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0 20 40 60 80 100 120 0 10 20 30 40 50 60 70 80 90 f(x) = 0.74x + 2.94 % Salicylic Acid vs. A/Mass % Salicylic Acid A/mass (g)
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Standardization of NaOH Trial KHP mass (grams) NaOH Volume (mL) 1 0.276 g 14.00 mL 2 0.277 g 14.15 mL 3 0.309 g 15.95 mL Average Molarity Spectrophotometric Measurements Substance Absorbance Mass Salicylic Acid 1.393 A 0.018 g Product 0.035 A 0.017 g Pure Aspirin 0.053 A 0.018 g 100 77.39 3.81 2.06 2.51 2.06
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Preliminary Testing of Aspirin Calculated Molarity (mol/L) Substance Color Observed
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Unformatted text preview: 0.0965 mol/L Salicylic Acid: deep, dark purple 0.0959 mol/L Product: peach 0.0949 mol/L Pure Aspirin: orangish peach 0.0958 mol/L Determination of Molar Mass of the Product Absorbance/Mass Trial Product (grams) NaOH Vol ume (mL) 77.39 A/g 1 0.16 9.20 2.059 A/g 2 0.17 9.60 2.944 A/g 3 0.15 8.70 100 77.39 2.94 2.06 Calculated Molar Mass g/mol 175.9 189.2 184.8 Average Molar Mass: 183.3 g/mol...
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aspirin - 0.0965 mol/L Salicylic Acid: deep, dark purple...

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