Q: What are the consequences if an EDTA tube is filled first before a red top tube?
A: Red top tube This tube is plain glass. It does not contain any anticoagulants, preservatives, or…
Q: How does an ESI source work (from injection to ions beam formation)?
A: Electrospray ionization (ESI) is a technique used in mass spectrometry to produce ions using an…
Q: In most cases, the positive fragment (anion) comes first before the negative fragment (cation). *…
A:
Q: Instruction: 1. Using a 25-mL glass stoppered buret filled with distilled water and with an initial…
A: 1) Total volume of the buret = 25.0 mL 1/3 of the 25.0 mL is run down. Calculation of final reading:…
Q: The compound eluted last and retained more in Normal phase Chromatography are: A. Polar compounds B.…
A: In normal phase chromatography, the stationary phase is Polar
Q: Find (M) for [FeSCN^2+] using the following info: 0.200 M (Iron (III) nitrate) Fe(NO3)3 (mL) = 17.98…
A: The volume of 0.200 M Fe(NO3)3 solution is 17.98 mL. The volume of 0.200 M KSCN solution is 1.97 mL.
Q: write a brief summary about two-dimensional PtSe2
A: Scientist Minozzi first synthesized PtSe2 in 1909. PtSe2 is a compound of transition metal Pt and…
Q: What is the n-factor (valency factor) of Silver Nitrate (AgNO3)? please also help me with this,…
A: n factor (valency factor ): It is the factor by which oxidation number of the specified element…
Q: Im having trouble completing this page and im not sure if any of my answers are right
A: Dear student,I am providing solution for the three parts that you have not attempted as we are…
Q: True or False. The Km can be affected by the substrate concentration [Km]. Also give your…
A: The Michaelis menten mechanism of enzyme action is one of the most important theory which explained…
Q: Pls help
A: Define Conformation ?
Q: hand written solution only otherwise I will down
A: According to the question, we need to determine the Major product for the reaction. This is an…
Q: Option a should be the correct answer and you please rework the problem and show me how they came up…
A: The mass of solute present in per million mass of the solution is known as part per million (ppm)…
Q: Linear Regression
A: b. Make sure you choose ''linear regression'' curve fit.
Q: ucumberlands.blackboard.com Take Test: Quiz 3 - Spectroscopy Test Informatlon Description…
A: IR light is a part of electromagnetic spectra.
Q: What's wrong with me? Pick out what is wrong with the following names by clicking on the incorrect…
A:
Q: hates 2. In a chromatographic experiment with a nonpolar stationary phase, which compou first;…
A: Given that the coloum chromatography
Q: Select Draw Rings More Erase H N Cl HCI N' H20 NH,
A: Your product are correct but amine in salt formed with HCl
Q: Answer 28, 29 & 30 show-all-working-explaining-detailly-each-step Answer should be typewritten…
A: Note: Since you have posted multiple independent questions in the same request, we will solve the…
Q: Select all of the situations which will NOT lead to errors when using Beer's law. Analyzing samples…
A: The amount of a substance that resides in a given volume of the solution is expressed as the…
Q: Instruction: 1. Using a 25-mL glass stoppered buret filled with distilled water and with an initial…
A:
Q: gagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take (References] Use…
A: Concept is based on solubility of solution
Q: Develop MSDS for phosphoric acid?
A: MSDS stands for Material Safety Data Sheet. The major information it provides are -hazardous…
Q: Drag and drop options on the right-hand side and submit. For keyboard navigation. SHOW MORE V…
A:
Q: Please help 1. Why should you never create the filter paper as you fold it? 2. Fill in the blank…
A: So the answer as follows :
Q: Write a detail note on soft ionization techniques
A: In the mass spectroscopy, the unknown molecule is detected by converting the molecules into smaller…
Q: TOF ion trap orbitrap
A: Mass spectrometry is an analytical technique.
Q: Compare between Electron ionization (EI) and Chemical ionization methods.
A:
Q: The Rf of four spots in a normal phase paper chromatography is given. Determine which of these is…
A: Here the the rf factor is a tool to determine which spot is polar or non polar. The least rf value…
Q: Which statement is true? Statement 1: In Thin Layer Chromatography (TLC), the polar compounds will…
A: Given data: Statement 1: In Thin Layer Chromatography (TLC), the polar compounds will have a greater…
Q: Capric acid contains carbon atoms А. 10 В. 6 С. 12 D. 8
A:
Q: A. Copper sulfate pentahydrate is often used to teach students about Beer’s Law by making a standard…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: Give all answer.i will rating you
A: Given alkene is symmetrical , hence it will give single carbocation as intermediate, so that we will…
Q: Based on the TLC results label spots 1,2,3 with aspirin, acetaminophen, and caffein. Make sure to…
A: Retention factor (Rf) = Distance travelled by the compound Distance travelled by the solvent…
Q: what will produce a smaller Rf value if the solvent and paper are both changed?
A: Increasing the polarity of solvent will result in increase in Rf value as the compound in even for…
Q: Test Tube Add First and note appearance Then add... 1 mL of 0.01 M KMNO4 plus 6 drops of 6 M H2SO,…
A: The given reactants are K2Cr2O7 and H2SO4.
Q: Explain why the dye spots are elongated and not round on your chromatogram.
A: The term chromatography or the paper chromatography refers to a technique which is used for the…
Q: explain why alumina containing zeolites possess chemically active surface
A:
Q: Question 9 Which of the following is not a part of conventional UV/Vis. spectrophotometer? A…
A: UV/Vista spectrophotometer is used in UV/Vista spectroscopy.
Q: Classify the solutions as acidic or basic. Drag the appropriate items to their respective bins.…
A: OH-=1.9x10-9MIn thisOH->H+∴Solution will be basic .
Q: Can you please write the answer EXACTLY in the way it is asked, by filling in the table or writing…
A: Solution is given below .
Q: PART 2. DETERMINATION OF THE CONCENTRATION OF A STRONG ACID SOLUTION EXPERIMENTAL DATA The total…
A: Given:
Q: Follow-up questions 1. What is the purpose of the lid on the colorimeter?
A: The calorimeter uses a closed lid, or surrounding area. In CAL2K ambient polystyrene is used as…
Q: Course Contents » » Homework Set #5 » t02p08 Timer Notes Evaluate Feedback Print Info List the…
A: A reversible chemical reaction can move in either forward or backward direction. The stage of a…
Q: Conclusion 5: You are tasked with analyzing a suspiciously pink sample of drinking water to…
A: A question based on analytical chemistry, which is to be accomplished.
Q: Given that pK1=1.30 and pK236.70, what is the pH of the solution? What is the [H*] of the final…
A: pH is the scale to measure] a substance which is a acidic or basic in nature. It is range 0 to 14 .…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Using the information in the first picture, solve the problem in the second. I am not good at drawing molecules when determining which structure to use in relationship of pH and pKA. Please explain your answer. Thank you very much!Xanthurenic acid stock solution Absorbance 25 0.052 50 0.128 75 0.202 100 0.310 150 0.448 200 0.621 Plot a graph, from graph, y=mx (force the trend line to pass through origin since the blank with no xanthurenic acid was set to be zero absorbance) in which, y: Absorbance, x concentrationWhat is the role of Glycerin in the assay of Boric Acid?I. The reagent prevents the formation of pink color earlier than the expected endpoint.II. The reagent allows the reaction of protons from the acid sample with the hydroxyl ions from the titrant.III. It enhances the water solubility of the difficultly soluble boric acid. a. I, II & III b. II & III c. I & II d. I only e. I & III
- Write R if the compound will give positive result to chromic acid test and S if not. 1. 2. 3. 4. 5.What does it mean if the color of the solution in UV flashlight are the following Sample 1- light green Sample 2-light green Sample 3- sky blue Sample 4-- blue green Sample 5--cyan blue green Sample 6-- light greenNina, Roland, and Odi tried to do a recrystallization technique to purify a crude sample of benzoic acid. However, their instructor, George, pointed out some things about their technique. Roland forgot to add charcoal to the crude sample. Nina put the hot sample in the ice bath immediately. Odi used a long-stemmed funnel. Who among the students will achieve the highest purity? a. None of the above b. Nina c. Odi d. Roland Explain why. Thank you!
- To which sample solution the spike will be add? the distillate>130C the mass standard the distilled <130Chow would you do this question? this is a non graded practice worksheet(a) What color was the indicator for acidic solutions? What about for basic and neutral solutions? What was the order of your samples, from most acidic to least acidic? (b) What is the organic compound responsible for the color changes observed? What is the basis for these color changes?
- Please draw chemsketch of this by using any software like kingdraw or chem draw. And send this solution back as chemsketchNeeding help with this for my study guide. Not a graded activityUsing the titration data below, plot the titration curve of this unknown diprotic amino acid and determine pKa1. Report your final answer to two places after the decimal.