Question 9 A student obtained a percent yield of 125%. Why is this unreasonable, and what could contribute to a student obtaining a percent yield greater than 100%? Be clear and concise. BI U A E + | Paragraph .. Lato (Recom... v 19px ... v

Question 9 A student obtained a percent yield of 125%. Why is this unreasonable, and what could contribute to a student obtaining a percent yield greater than 100%? Be clear and concise. BI U A E + | Paragraph .. Lato (Recom... v 19px ... v

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter20: Nucleophilic Substitution Reactions: Competing Nucleophiles

Section: Chapter Questions

Problem 8Q

See similar textbooks

Related questions

Q: Can I get some help doing these? If I can see one example done I could do the rest

Q: I need help finding the therotical yield from this video. I tired it and i got 2.49 grams I do not…

A: The balanced chemical equation for the formation of Grignard reagent is: Bromobenzene(C6H5Br) +…

Q: fROM THE PICTURE (A) Write down 10 hazards that you can observe in the said picture. (B) Identify…

A: 1. Nail - physical 2. Smoking - chemical 3. food colour - chemical 4 nail paint- chemical 5…

Q: Keat for the Control in experiment

A: (d) Kcat = Vmax/[E] Given, [E] = 0.001 micro molar i.e. 0.001 micromol/L

Q: Please help out with this lab safety question. Explain.

A: The mentioned set up on the bench top represent heating the hexane solution. During heat precautions…

Q: C. Biosensors are considered point-of-care analytical devices that can make diagnoses faster. One of…

A: Given: First generation glucose biosensor To explain the theory and working of the first generation…

Q: concept that seemed difficult to you at first, but then after working on the concept, you were able…

A: The concept of "Quantum mechanical treatment of H-atom" was difficult to me at first. The…

Q: What can labs do to reduce error in GC- ms??

A: Gas chromatography- Mass spectrometry: gc-ms has been used for the analysis of biological samples…

Q: Give two examples of random errors. Please do not give what is already given in the example. Thank…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: How many tabs are to be cut into the filter paper in construction of the apparatus, and how many…

A: Given: filter paper and metals. To find : number of tabs and metals. Solution : As we know that,…

Q: Olympic athletes are tested to see whether or not they are using illegal performance-enhancing…

A: Suppose Olympic athlete tests positive for drugs that they took before the concerned event, the test…

Q: charting costs ($)- TTT TT 2. On the graph shown to the right: (a) Draw a star (*) on the abscissa.…

Q: ow can the integrity of specimens and laboratory processes be protected so result can be useful in…

Q: please highlight the correct answer

A: In the diluted solution, 0.1 ml of diluted solution has 150 bacteria, since each colony consist of…

Q: T?F Sci. Mtd. may disprove a law of nature. T?F Sci. Mtd. may adjust the model to fit the facts. T?F…

A: Yes, scientific method is used for testing theories and model by comparing eith observed results and…

Q: Over-the-counter hydrogen peroxide solutions are 3 % (w/v). You may want to reference (Pages…

Q: 125 75 25 0. ont 40 609 80- Relative Intensity

A: M+ peak: Peak with highest m/z value Base peak: Peak with highest intensity

Q: 1. The fertilizer recommendation for a 1 hectare of rice farm during dry season is 120-60-60kg…

A: At First you have to calculate the amount of phosphorus and potassium fertilizers amount because…

Q: Can you make a suggestion for a research topic about disaster risk? or any topic that can be…

A: Sure.

Q: b) ہنڈا F Br xxx Sug g) Br etco Fall 2021 Spring 2022 Screen Shot 2022-0...49.34 PM Organic…

A: Name the following compounds. only part f,c and g.

Q: A cvg.cengagenow.com/ilrn/takeAssignment/takeCXPCompliantActivity.do?locator%3Dassignment-take…

A: The aluminum in a package containing 77 ft2 of kitchen foil weighs approximately 19 ounces. Density…

Q: Time Rate Trial ПОз] [HSO3]/time 2.04 x 10^-5 [.EOSH) 0.002M 0.001 M 49 M/s 0.004 M 0.001 M 25 4 x…

Q: Product: DRY SENSITIZED SOLAR CELL (a) How was it produced using nanotechnology? (b) What are the…

A: (a) A dye-sensitized solar cell ( DSSC, DSC, DYSC or Grätzel cell) is a low-cost solar cell…

Q: Read through each scenario. Under the scenario, write which lab safety rule is being broken and…

Q: In a clean sheet of paper, tabulate the differences of the Four (4) Phases of Clinical Trials by…

A: clinical trail is defined as process of research Which involves study of new method of testing and…

Q: A tank contains 200L of a dye solution with a concentration of 1gram per liter. To prepare for the…

A: Solution -

Q: What will the units be for those rate calculations if you collect data from the interactive?…

A: Rate is defined as the change in concentration per unit time R = concentration /time

Q: Trituration is a process of reducing particle size which involves the addition of an appropriate…

A: There are various method of reducing the particle size such as grinding, mechanical mixing etc.

Q: this

A: According to the question, protein increases its distance from the rotation axis from 7.6 to 9.8 cm…

Q: WATCH THIS TWO MINUTE VIDEO TO SOLVE…

A: A multiple choice question based on theoretical yield, which is to be accomplished.

Q: You have recently been hired as a researcher in a premier university. Your research deals with…

A: Answer - According to the question - Antibiotic D is effective against gram negative bacteria.…

Q: A chem acetone, tetrahydrofuran, glycerol, carbon tetrachloride, and diethylamine. rking as a safety…

A: Since density is defined as the mass of substance per unit of volume Hence density = mass / volume…

Q: PLEASE ANSWER THE FF: - CLINICAL CHEMISTRY 1.The main programs of the quality assurance…

A: The solution is given below -

Q: Meo Rh ,(mandelate), (4 mol%) CO,Me CO,Me DCM, reflux, 10 min then add DBU, 2 min; OR Meo OMe OR MeO…

A: Step 1: carbene reaction with double bond generates a cyclopropane ring. Step 2: Under thermal…

Q: LIMIT TEST (IMPURITIES - BIOLOGICAL) Instructions: Note the color change of each of the samples by…

A: A question based on general chemistry that is to be accomplished.

Q: Below is a simple set of weights obtained while immersing potato slices in various sugar solutions…

A: The data given is,

Q: DWed Jul 21 16:13:55 2021 (GMT-05:00) 55 50- 45 40 35 30 25 20 15 10 5- -10 -15 -20 3500 3000 2500…

A: IR spectrum gives mainly the information about the presence of functional groups and other some…

Q: Give two reasons a chemist might measure the melting point of a solid reaction product. Be clear and…

A: Melting point is important physical property.It is helpful to determine purity of a compound.…

Q: Question attached

A: Vivarin tablet contains caffeine. The percentage of caffeine isolated or recovered can be determined…

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: • UCI has a 137CS source about 4,000 Ci now. It was new in 1969. How active was it when new?

A: Given: Half life of 137Cs = 30.17 years Activity of 137Cs now (2021) = 4,000 Ci It was new in 1969…

Q: Is my proposed synthesis correct in the following picture?

A: In the given reaction, reduction occurs at the last step in mechanism. The correct sequence the…

Q: convert[PNP]/min=11·89 micromelarminue intomamomoles per minute using milliunit CENPI/min* 1:5mL %3D

A: Answer: This is a question based on unit conversion where to convert the molar concentration into…

Q: Below is a simple set of weights obtained while immersing potato slices in various sugar solutions…

A: Weight obtained by immersing the potato slices in various sugar solution .

Q: Pre-lab 1. In your own words, what is accuracy and precision? Why are they important in the clinical…

A: Accuracy is the measure of how closely the result is matched with the true or accepted value.…

Q: A student mixed 5 mL of 3% m/v H2Ö2 with 10 mL of 0.5 M IKI solution and measured the volume of…

A: Rate = slope of the straight line graph = dy / dx = (y2-y1) / (x2-x1)

Q: Real life applications of standardization of NaOH.

A: A KHP sample of known mass can be titrated with the NaOH solution to determine very precisely the…

Q: [References) Use the References to access important values if needed for this question. The Pauli…

A: n= principal quantum number = 1,2,3......upto n l = Azemuthal quantum number= 0,1,2,3...upto (n-1)…

Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

Please answer the questions. Go through the concept if needed

Link to lab Video:

https://drive.google.com/file/d/1BR55ITa7wyOLgLy-MT6ogeXp-fiyuTHn/view?usp=sharing

Link to the concept of this lab ( you might not find the answer here tho, it’s just to understand the concept) :

https://drive.google.com/file/d/1BUu2FHXv59xW42DI1R5kvKLmHXstc6jt/view?usp=sharing

Question 9
A student obtained a percent yield of 125%. Why is this unreasonable, and what
could contribute to a student obtaining a percent yield greater than 100%? Be clear
and concise.
в I
+ v|
Paragraph
...
Lato (Recom... v
| 19px ... v
</>

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

comment on the greeness of the experiment. the percent yield was 25%, the atom economy 38.8%, and the reaction effieciency 9.7 %
Sample: Saline 0.900% (m/v), in sodium chloride (NaCl). Data: M.A. (g/mol): Na = 22.9898; K = 39.0983; Cr=51.9961; Ag = 107.8682; Cl = 35.453; N=14.0067; O = 15.9994. Material available in the laboratory's warehouse: Reagents: distilled water; standardized solution of silver nitrate (AgNO₃), at a concentration of 0.09980 mols/L; Potassium chromate solution (K₂CrO₄) 1%; ammoniacal ferric alum solution [Fe(NH₄)(SO₄)₂] and; nitrobenzene (or cooking oil, alternatively); 0.1000 mols/L potassium thiocyanate (KSCN) standard solution. Glassware: beakers of all sizes available on the market; 50, 100, 150, 200 and 250 ml Erlenmeyers; 10.00 and 25.00 mL volumetric pipettes; 15.00 mL burette; 30.00, 50.00 and 100.00 mL volumetric flasks Calculate the molarity of saline, in terms of the NaCl concentration (concentration in mols/L). (a) 0.900 mols/L (b) 5.84 mols/L (c) 0.154 mols/L (d) 0.0154 mols/L
and Employees CH STATE GE 90 ENDULERSE IS FOREVER "ON-Tame Name Jodi Rayal Molarity = wt. x1000 3. Calculate the massof Potassium hydrogen phthalate (KHP) to prepare a 250.0 mL solution of 0.1000 M KHP solution. Mol ut. x Voluse the 2500×1000 204.22250 mass Initial Buret Reading Final Buret Reading Vol NaOH Added Moles of NaOH Moles of HCI Volume of unknown HCI solution Concentration of HCI Average concentration of HCI of KHP = 5.11g 4. Complete the table below for the following neutralization reaction of an unknown concentration of hydrochloric acid with 0.100 M sodium hydroxide: Mu spate solution Trial 1 0 11.15 го data and calculate the concentration 15 Trial 2 11.15 22.15 Trial 3 22.15 33.25 abyh 067 LANDINUKASHU TROWTHCENTISSATE ARAD Ma That par މއކނި REMURNAR MISAMARALISERDRY Tile
500 mL of a solution containing 55.3 g aqueous sodium phosphate is mixed with a 500mL solution containing 110.1 g aqueous barium chloride. Once reacted and filtered 50.0g solid barium phosphate are isolated by suction filtration. Determine the limitingreactant, theoretical yield, and % yield for this experiment. MM 164.0 g 208.3 g 602.0 g2 Na3PO4 (aq) + 3 BaCl2 (aq) - Ba3(PO4)2 (s) + 6 NaCl (aq)
The mercury in a 1.1113-g sample was precipitated with an excess of paraperiodic acid, H5IO6: 5Hg2+ + 2H5IO6 → Hg5(IO6)2 + 10H+ The precipitate was filtered, washed free of precipitating agent, dried, and weighed, and 0.4733 g was recovered. Calculate the percentage of Hg2Cl2 in the sample. _______%
When Na3PO4 and Ca(NO3)2 are combined , the following reactions occurs:2PO4 3- (aq) + 3 Ca2+ (aq) ------ Ca3PO4)2How many grams of Ca3(PO4)2 (MM = 310.18 g/mol) are obtained from 15.00 ml of 0.1386 M Na3PO4 are mixed with 20.00 ml of 0.2118 M Ca(NO3)2 ?
4) NaCl (20.0 g) and AgNO3 (20.0 g) are dissolved in water and allowed to react (Reaction 2). I just need help with parts (d-f). PLease help me, question shown in photo Include phase labels where appropriate and balance all equations. I also included the work I've already done for context! (Molar masses (grams/mole): Na = 23.0; Cl = 35.5; Ag = 107.9; N = 14.0; O = 16.0) ????(??) + ????ଷ (??) → ? + ? R
A sample of an industrial waste water is analyzed and found to contain 16.5ppb Fe2+. How many grams of iron could be recovered from 1.81×103 kg of this waste water? Answer:_______ grams Fe
Assume that 1.00 mL (1.02 g) of crude product mixture is obtained from the reactionbefore the washing steps, and the distribution constant of the product mixture in brine isK = (Cmixture/Cbrine) = 50.0. Assuming that after mixing the product mixture volume isstill 1.00 mL (i.e., the volume lost is small), and the volume of the first brine wash layeris 2.00 mL. What mass (grams) of product mixture is lost (dissolves) in the first brinewash? (See Technique 13.2, p 53.) Show work.
Masses : Ca = 40.08 g S= 32.07 g O= 16.00 g A 35.0 mL sample of CaSO4 was evaporated to dryness, leaving 0.967 g of residue. What was the molarity of the original solution? step by step please
I need help finding the therotical yield and the percent yield with the data provided: mass of filter paper crude= 0.184 g mass of filter paper+ crude product=1.211 g mass of filter paper pure=0.182 g mass of filter paper + pure product= 0.809 g melting point of pure product= 105-110
What Is the mass to mass stoichiometry calculation in this balanced chemical equation? (Given that the sulfur in the yield is octasulfur since this is a precipitated sulfur) 8CaS5 + 16HCl → 5S8 + 8CaCl2 + 8H2 and what is the A.) limiting reagent b.) excessive reagent given the mass attached in the photo?