Calculations. 1. Standard solutions and Beer's law calibration curve (1) Mass of SA Molar mass of salicylic acid (SA), HOC6H4COOH (2) Moles SA = mass/molar mass 0,165 138.1 0,500 = (0.500/10.0)x(stock solution concentration)/o. O 0.100 (3) Concentration of SA stock solution = mol/0.100L = (2)/0.100= SA solution "4" (0.400 mL stock to 10.0 mL) = 0.165 8 The SA is hydrolyzed and quantitatively transferred to a 100. mL volumetric flask, so: 1.1947/07 SA solution "3" (0.300 mL stock to 10.0 mL) = 138.1 (4) Concentration of SA solution "5" (0.500 mL stock to 10.0 mL) 33 x 2762 SA solution "2" (0.200 mL stock to 10.0 mL) SA solution "1" (0.100 mL stock to 10.0 mL) -1.1947 mol SA x10 g/mol 2762 -3 33 mol/L mol/L As-0-888 mol/L A+ = -695 mol/L A= 0.422 A₂ = 0.35 mol/L mol/L A₁ = 0. r these concentrations and absorbance in an Excel sheet and create a calibration curve. Attach calibration curve with this report.

Calculations. 1. Standard solutions and Beer's law calibration curve (1) Mass of SA Molar mass of salicylic acid (SA), HOC6H4COOH (2) Moles SA = mass/molar mass 0,165 138.1 0,500 = (0.500/10.0)x(stock solution concentration)/o. O 0.100 (3) Concentration of SA stock solution = mol/0.100L = (2)/0.100= SA solution "4" (0.400 mL stock to 10.0 mL) = 0.165 8 The SA is hydrolyzed and quantitatively transferred to a 100. mL volumetric flask, so: 1.1947/07 SA solution "3" (0.300 mL stock to 10.0 mL) = 138.1 (4) Concentration of SA solution "5" (0.500 mL stock to 10.0 mL) 33 x 2762 SA solution "2" (0.200 mL stock to 10.0 mL) SA solution "1" (0.100 mL stock to 10.0 mL) -1.1947 mol SA x10 g/mol 2762 -3 33 mol/L mol/L As-0-888 mol/L A+ = -695 mol/L A= 0.422 A₂ = 0.35 mol/L mol/L A₁ = 0. r these concentrations and absorbance in an Excel sheet and create a calibration curve. Attach calibration curve with this report.

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.107E

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