MaASapling LearningA solution of a specific vitamin has Amax = 283 nm and a concentration of 7.16 x 107 M. The absorbance of thsolution at 283 nm is A = 0.150. What is the molar absorptivity of the vitamin at 283 nm? (sample pathlength1.00 cm)Number-1L mol cm5.ExitNextCheck AnswerGive Up & View SolutionPreviousHintreb search

Molar absorptivity can be defined as the ability of a chemical solution or chemical species to…

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Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter3: Statistical Tests With Excel

Section: Chapter Questions

Problem 3P

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1. Data & Results 4.0 mglmL Concentration of stock solution (include units): Table 1-Beer's Law Plot Data V Volume of standard solution dispensed (mL) M, Diluted concentration (include units) Sample Absorbance A 2.00 mL 0.084 4.00 mL 0.173 l6.00 mL 0.259 8.00 mL 0.340 E 10.00 mL 0.418 Equation of trendline from Beer's Law plot: whats the diluted concentration and equation of trendline from the beers law plot once created?
A solution of FESCN2+ has a concentration of 1.00 x 10-M and an absorbance of 0.755. What is the concentration of an FeSCN2+ solution with an absodbance of 0.491? Enter your answer in scientific notation, with one decimal place, as follows: 2.3e-4 or 2.3E-4 Do not include units and note that 10 and x are NOT USED in this type of scientific notation. Question 3 of 26>»
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Using your determined value of Ksp = 3.7x10^-11 calculate how many milligrams of silver chromate will dissolve in 10.0mL of water (show work). Please answer fast I give you upvote.
Part Il: Determination of Standard Solutions mL of 0.200 mL H20 added M Cuso, diluted Tube # M Cuso4-5 H20 added Absorbance about 3 0.200 1.346 3. 4.00 1.00 0.945 4 3.00 2.00 0.715 2.00 3.00 0.469 6. 1.00 4.00 0.281 show calculation for Tube #3 diluted concentration:
How to solve the following?
68OpenVellumHMAC=defce5f03204e95efa2fcf11b1ecff98#10001 I Review | Constants | Peri Part A E 18.2 50.0 mL of 0.15 M HCHO2 with 80.0 mL of 0.12 M NaCHO2 m Express your answer using two decimal places. • View Available Hint(s) να ΑΣφ pH = Submit Part B 120.0 mL of 0.11 M NH, with 240.0 mL of 0.11 M NH, CI Express your answer using two decimal places. > View Available Hint(s) Πνα ΑΣφ pH = P Pearson right 2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy I Permissions | Contact Us | f9 f12 4+ DDI &
How do I find Concentration? flask Calculate solution Concentration (M) Volume stock of 0.40 M CuSO4 (ml) Volume of flask (ml) Absorbance at 635 nm(a.u.) 1 2.0 10 .185 2 4.0 10 .362 3 6.0 10 .510 4 8.0 10 .674 5 10.0 10 .843
I need to find the concentration of dye in sports drink y=mx can also be A=elc
ing 0.03% w/w_of the same drug, who would be the percentage strength (wh) a of of the mixture? 23. A physician prescribes an suspension to contain 100 mg of corti- at n ophthalmic st sone acetate in 8 mL of normal saline solution. The pharmacist has on hand a (2.5% suspension of cortisone acetate in normal saline solution. How many milliliters of this and how many milli- le S liters of normal saline solution should b be used in preparing the prescribed sus- pension?gorq ww.Ps-3/9rie 24. R Benzalkonium Chlorda
What is the concentration strength of Drug A in mcg/mL? Rx Drug A 0.02% w/v Alcohol 10% v/v NS qs 250 mL
-3 A 0.3202 (±0.0001) g sample of a pure monoprotic acid required 20.04 (±0.02) cm° of 0.1005 (±0.0005) mol dm neutralisation. Find the molar mass of the acid in g mol together with its uncertainty also in g mol, with an appropriate number of digits. NaOH for -1 Select one: a. 1.59 x 102+ 0.2 g mol b. 1.60 x 10 + 0.03 g mol C. 1.590 x 102 + 0.03 g mol d. 1.590 x 10- + 0.2 g mol 1.60 x 10-+0.2 g mol е. Clear my choice

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