PLEASE DO HELP ME.. NO NEED FOR EXPLANATION... THIS IS JUST A PRACTICE EXERCISE FOR OUR UPCOMING ORAL AND THESE ARE THE SAMPLE QUESTIONS..

Q: Why would precision not matter when you are calibrating a pipette? Background info: You are counting…

A: Titration is the quantitative method of estimating the strength of the any component. Molarity is…

Q: Please help me with both of these problems, they are  the same question its just a two-part, I…

A: Carboxylic acids react with thionyl chloride (SOCl2) to form acid chlorides.

Q: Just needing a recheck on this problem to confirm whether it's right or wrong. Please rework. Thanks

A: To rework and check whether the problem solved is correct or not.

Q: .18 required 44.15 sample.

A: Given as, Mass of HCl = 4052 mg = 4.052 g  Specific gravity of HCl = 1.18  Volume of NaOH = 44.15 mL…

Q: In a normal phase chromatography setup, which would be the predicted characteristics of the eluates…

A: A normal phase chromatography involves a stationary phase and a mobile phase.  It is an adsorptive…

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: Please give clear handwritten answer calculated logp of the following two drugs & show workings..?

A: IN LogP , P is the prtion coefficient and this are experimental

Q: Data Table: (include units!) Unknown Acid # Unknown Acid #3 M Your NaOH concentration (YOU FOUND…

A: Trial 1 Concentration of NaOH solution = 0.10 M Volume of acid used = 17.0 mL = 0.017 L Total volume…

Q: This is a not graded pre test, I just need the blanks in the BCA table based off the balanced…

A: The balanced chemical equation for combustion of propane  C3H8(g) + 5O2(g)  --------> 3CO2(g) +…

Q: These are practice questions. Please help! Thanks.

A:

Q: OF, Co, Select Draw Rings More Erase Select Draw Rings More Erase F C

A: Lewis structures are diagrams that represent the valence electrons of atoms within a molecule.

Q: Question:  Using a sample of aspirin for HPLC analysis. If the aspirin was contaminated (wet) with…

A:

Q: Example: A distillation model containing a certain percentage of water was taken from the model 25…

A: The amount of separated water given in question is 2 mL and amount of total water present initially…

Q: . Describe volumetric quantitative analytical methods.

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: b. [H] = 0.01 M Standard Acid: %3D Pipette out 0.5 mL of the acid solution prepared in (a) and place…

A: Given -  (a) Acid concentration of acid standard (a) = 0.1 M  Volume is = 5 mL    (b) Now, acid…

Q: Describe one alternative column other than a C18 for caffeine detection in terms of stationary phase

A: C18 columns are present in high performance liquid chromatography (HPLC) that are utilized as a…

Q: Compute for the initial dilution of tube #1 and final dilution of tube #5.

A: It contains 0.9 mL of saline and 0.1 mL of serum. Total volume = 1 mL So, we have 0.1 mL of serum in…

Q: Hello! Thank you for your urgent answer.    Please continue answering the Learning Task 2.…

A: All true and false were correct. I will proceed with answering task 2.

Q: Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Unknown final buret reading (mL) 26.33 30.29 33.21…

A: Volume dispensed = Final burette reading - initial burette reading  Using dilution law- M1V1 = M2V2…

Q: What's wrong with me? Pick out what is wrong with the following names by clicking on the incorrect…

A:

Q: Part 1 NH3. Kp(NH3) = 1.8E-5. eTextbook and Media Hint Save for Later Using multiple attempts will…

A: PH of weak acid and weak base

Q: with

A: We know that LAS i.e linear alkyl sulfonate is an anionic surfactant used in detergent and cleaners.…

Q: Your NaOH concentration 0.10 Trial 1 Trial 2 Volume of Acid (in mL) 12 ml 14 ml Initial Buret…

A: Disclaimer : To find out the percentage error , actual concentration of the acid should be known.…

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: Kinetic Data Collection Time, t (s) Volume of added base (mL) Flrst additlon 40 0.50 Second addition…

A: Given: Concentration of NaOH stock solution = 0.01 M Concentration of t-BuCl stock solution = 0.2 M…

Q: EXPERIMENT: SIMPLE BATCH DISTILLATION    I want theory background for this experiment

A: The answer is given below

Q: Data Collection Kinetic Data Collection Time, t (s) Volume of added base (mL) Flrst additlon 40 0.50…

A: Given:  Concentration of NaOH stock solution = 0.01 M  Concentration of t-BuCl stock solution = 0.2…

Q: Instruction: 1. Using a 25-mL glass stoppered buret filled with distilled water and with an initial…

A:

Q: I should know about Sxx, Sxy, and to get those, I should calculate sigma xy. And to get xy, I should…

A: In this question what type plot have to perform, is not mentioned . I have calculated Sxx , Syy and…

Q: modified true or false Performing Liebermann’s nitroso test on pentanamine will result to…

A: Given statement is :  Performing Liebermann’s nitroso test on pentanamine will result to…

Q: Question is attached

A: Molarity is defined as the moles of solute present per liter of the solution. It is expressed in…

Q: (a) Initial Buret Reading (b) Final Buret Reading Trial 1 Trial 2 Trial 3

A: For reading the buret value our eye must be at the level with bottom meniscus of the liquid. Reading…

Q: Liquid extraction What can you do if you don't know which layer is which in an extraction procedure?…

A: Extraction is a fundamental technique used to isolate one compound from a mixture. A liquid/liquid…

Q: m doing lab report for thin layer chromatography right now, but I'm struggling with a question about…

A: TLC is used in organic synthesis to know whether the reaction is completed or not . And the no of…

Q: Diagram of Paper Chromatogram: Marker Dyes Draw all spots that appear on the chromatogram, and mark…

A: First observe the solvent front. It could be nearly 11 cm as per your picture of paper and ruler.…

Q: this problem because we are going to orally solve virtually later. atleast I will be going to study…

A: For maximum products , reaction must move towards product side.  Means reaction should be…

Q: Volume HCl (mL) 25.00 а. 0.00 b. Initial buret reading (mL) 25.40 c. Final buret reading (mL) 25.40…

A: Equation  NaOH(aq) + HCl (aq) ——> NaCl (aq) + H2O(l)   Molarity = no. of moles / volume (Lt)

Q: Cuvette maintenance and cleaning is crucial for the success of spectroscopic analysis. Which is NOT…

A: Spectroscopic analysis is a technique that can be used to study the interaction between…

Q: a. If the mixture is dabbed onto chromatography paper that was then placed into a polar solvent,…

A: Greater the electronegativity difference between the atoms, greater is the polarity.

Q: How do you analyze a sample in “weight basis” or as received basis”?

A: There are many spectroscopy techniques to analyse the sample 'weight basis ' or as received basis

Q: The aspirin we made in lab gad 125-133 melting point and I attached the IR. Base on this…

A: The structure of aspirin is: It has the following major peaks in IR spectrum: vOH = 3100-3300 cm-1…

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: I know you don't answer graded questions and I am not looking for you to straight up give me the…

A: Mass spectrometry is a technique used to find out the molecular weight of the compounds and thus…

Q: improve

A: We know that resolution is a measure of how well two Elution peak can be differentiated in…

Q: Ca C. HO.

A: - OH is alcohol  -C-O-C- is ether

Q: The following conditions may not cause tailing EXCEPT a. Thick filter paper as the stationary phase…

A: Tailing in thin layer chromatography :  Due to the using high concentration of solute or other…

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: Would the concentration of OH– in the solutions used for Runs 2–4 be different if deionized water…

A: The main difference between the deionized water and the NaCl solution is the lacking of ion in…

Q: If two samples have identical Rf values, in a Paper Chromatography of Amino Acids  lab procedure,…

A: The different amino acids can be separated by using the technique of Thin Layer Chromatography.…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.