that asks what if you start with 0.50 im only send other in case you need them dont answer them only the question in (qu

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that asks what if you start with 0.50 im only send other in case you need them dont answer them only the question in (qu

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that asks what if you start with 0.50
im only send other in case you need them dont answer them only the question in (question and answer) answer this only
That Asks What If You Start With 0 50 Im Only Send Other In Case You Need Them Dont Answer Them Only The Question In Qu 1
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Question and answer. Q) If you started the experiment with a 0.50 M standard solution, explain how you will prepare a 100 ml of 0.25 M stock solution. (Show with calculation and explanation) Conclusion: we measured four different volumes of ASA and added FeCl3 by which different contrasts in each solution due to different concentrations. And from our graph we founded that concentration increases the absorbance.
B) Analysis of unknown aspirin tablet 1- Mass of aspirin tablet = B 2- Absorbance of "ASA UNKNOWN" = 3- Concentration of ASA UNKNOWN as determined from the calibration curve, CASA UNKNOWN = mol/L 4- Concentration of "STOCK ASA UNKNOWN", CSTOCK ASA UNKNOWN = (50.0/2.00) CASA UNKNOWN mol/L 5- Moles of ASA in 100 ml solution = 6- Mass of ASA = mol x molar mass= mol 8 7-% of ASA in aspirin = % Absorbance vs Concentration Chart Area 0.7 y = 1006,3x+0.0628 ng
Date: 1 :Subject التاريخ: موضوع الدرس:۔ A) Solution SA1 SAZ SAB SAY Absorbance 0.11 0.35 0.55 0.70 Concentration (M) 0.725 x 10" 2.54 x 16" 9.71xlo" 6.52x104 B) 1- -0.15 20 g 2- y = 0.28 3- 2.16 x 10 mol y 50 LASA unkown - 25x2.16 x 10" = 54x15 m/ -4
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