BOD determination using modified Winkler method Determination of molarity of a standard solution: The aliquot factor was not included in computation: Ex Blank 1 ET Blank 1 Add your answer
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- Solid silver nitrite is slowly added to 125 mL of a sodium cyanide solution until the concentration of silver ion is 0.0523 M. The maximum amount of cyanide remaining in solution is M. Please post the answer asap please make sure the answer doesnot contain error becasue last answer provided had error so i need to resubmit the question. Thanks!Please answer subparts d-e. Show solutions. ThanksIn which situation(s) is it necessary to use a volumetric flask for maximum accuracy? to prepare a 0.150M solution of sodium chloride to measure ~25mL of water to prepare 0.1M HCI from 36-38% HCI a and c all of the above (Please type answer no write by hend)
- How do I do the calculation(s) here to determine the information I will need to enter/graph in Excel?! (I can do the graph, mainly need help with the (chem-) math). Using the following information, draw the species diagram for the aqueous carbon dioxide bicarbonate ion-carbonate system at 25 °C: [H2CO3] + [HCO3-] + [CO32- ] = C K1 = [HCO3-] [H+] / [H2CO3] K2 = [CO32-] [H+] / [HCO3-]Physostigmine salicylate ( M. W. = 413) is 2 ion electrolytes, dissociating 80% in a given concentration ( i.e use a dissociation factor of 1.8). Calculate its sodium chloride equivalent Please answer with explanation. I will really upvoteNormality is same as Molarity for sodium hydroxide and normal = molar (for NaOH) Normality of sodium hydroxide = 0.10395N (normal) or Molarity of NaOH = 0.10395M (molar) Volume of NaOH consumed during the titration = 21.87 mL Mol wt of Naproxen = 230.26 g/mol Weight of Naproxen ds (i.e., sample) = 0.534g Calculate the % Purity (dried-basis) of Naproxen ds, given that the LOD results for Naproxen = 1.0% a 97.0 b 98.0 c 98.5 d 99.0 e 99.5 f none of the other answers.
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- An 7.50 ml aliquot of a 125 ppm stock Red 40 dye solution was diluted to a final volume of 25.0 mL with deionized water. What is the concentration of the dilute Red 40 dye solution (in ppm)? 37.5 ppm is the answer. (please show me how to calculate)Can you please solve sub question E through G and show all of the steps to the solution please and thank youA 10mL solution contains dissolved PbCl2. There are 0.02575 moles Pb2+ and 0.0515 moles Cl-. What is the math expression for the activity coefficient of an ion according to Extended Debye-Hückel approach?