Part A: Calibration Curve Preparation (5 points)Solution NumberAbsorbance[Cu2+] (M)10.2850.120.5580.230.8280.341.0190.451.4180.5(a) Show calculations for the concentrations of the solutions entered in the table above(10 points)=

Step 1:To prepare a calibration curve, you'll first need to understand the relationship between…

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

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3.) The following Beer's Law calibration plot was collected at 391.9 nm using the five mixtures listed above. The trendline equation was y = 4617.1x. A saturated solution of lead(II) chromate had an absorbance of 0.0025. Calculate its solubility, in molarity. Molar Solubility of PbCrO4: x 107 M ABSORBANCE VS CHROMATE CONCENTRATION AT 391.9 NM 1.40 1.20 y = 4617.1x R-0.9972 1.00 0.80 0.60 0.40 0.20 0.00 C 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 Chromate concentration (mol.L)
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In an experiment to determine the concentration of H2SO4 in a brand of toilet cleanser, 10.0 cm3 of the cleanser was first diluted to 250.0 cm3 with distilled water. 25.0 cm3 of the diluted cleanser were titrated with 0.320 mol dm–3 NaOH solution, using methyl orange as indicator.If 29.2 cm3 of NaOH solution is used, what is the concentration of H2SO4 in the undiluted toilet cleanser?a. 2.30 mol dm–3b. 4.60 mol dm–3 c. 9.20 mol dm–3 d. 11.50 mol dm–3
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Part A: Calibration Curve Preparation (5 points) Solution Number Absorbance [Cu2+] (M) 1 0.285 0.1 2 0.558 0.2 3 0.828 0.3 4 1.019 0.4 5 1.418 0.5 (a) Show calculations for the concentrations of the solutions entered in the table above (10 points) =