1- A student spotted a mixture of benzophenone and biphenyl on a TLC plate. She then developed the TLC plate in hexane and obtained the following result: (10 pts) علی benzophenone biphenyl TLC Plate after Hexane a. Label the spots on the plate above to indicate which is benzophenone and which is biphenyl. b. Fill in below what the developed plate would have looked like if the student had run the plate in acetone (2-propanone) instead of hexane
Q: 3. Cyclooctadienyllithium provides an example where electrocyclization of a pentadienyl fragment…
A:
Q: how to get 1-(1-methyl-3,4-dihydro-1H-isoquinolin-2-yl)ethanone from…
A: 1. Starting Material Analysis- **N-ethenyl-N-(2-phenylethyl)acetamide** has the structure where an…
Q: O Which of the following structures is the product of the reaction shown here? ОН OH OH BH2 ОН ОН OH…
A: Step 1: Step 2: Step 3: Step 4:
Q: A sample of argon gas occupies a volume of 6.57 L at 53.0°C and 0.880 atm. If it is desired to…
A: The objective of this question is to find the temperature of a sample of argon gas when its volume…
Q: 3. A 6.8 M of HNO3 is added to water at 25°C a. Should this be process be shown with an equilibrium…
A: d.) pH=−log[H3O+]pH=−log(6.8M)=−0.83e.) pOH=14−pOHpOH=14−(−0.83)=14.83
Q: None
A: Spectroscopic Techniques for Isotope Analysis of Helium: Introduction to Spectroscopy-Spectroscopy…
Q: Calculate [H+] for each of the following solutions at 25°C, and state whether the solution is…
A:
Q: Draw the structure(s) of the major organic product(s) of the following reaction. 1.…
A:
Q: A common alkyne starting material is shown below. Predict the major product or missing reagent to…
A: Thank you,Please rate my response.
Q: please answer in text form and in proper format answer with must explanation , calculation for each…
A: In this reaction, styrene monomers (C6H5CH=CH2) undergo free-radical polymerization in the presence…
Q: 7) Propose a synthesis. H
A: Step 1: hybroration oxidation reaction. They form lest substitute side OH(alcohol). Step 2: use…
Q: Chemistry
A: Step 1:
Q: Show work, thank you!
A: To solve this query, we need to first write the balanced chemical equation for the cell reaction…
Q: Draw structural formulas for organic products A and B in the window below. -CI Li pentane H₂O A B •…
A: Step 1:Alkyl chloride reacts with Lithium to form alkyl lithium . A is cyclopentyl lithium. Step…
Q: None
A: Step 1:
Q: Umesh
A: The image you sent appears to be a word problem about solving for the mass of sugar glucose produced…
Q: 2. Draw the missing structure(s) in each of the following reactions. The missing structure(s) can be…
A: Step 1:electrophilic addition reaction is the characteristic reaction of alkenes addition of…
Q: - Find the limiting reagent - Find the theoretical yield of both KHSO4 and Cr2(SO4)3 in grams - Find…
A: Step 1: Here, we are given following reaction:3 H2C2O4(aq) + K2Cr2O7(aq) + 5 H2SO4(aq) → 2KHSO4(aq)…
Q: What is the expected major product for the following reaction? 1. Hg(OAc)2, H₂O 2. NaBH4, NaOH OH HO…
A: Step 1: Step 2: Step 3: Step 4:
Q: A 0.175 mol sample of N2 gas is contained in a 4.00 L flask at room temperature and pressure. What…
A: The objective of this question is to calculate the density of nitrogen gas under given conditions.…
Q: Question 1 Select all of the option(s) below that are not a strong acid or strong base. NaCl ☐…
A: Out of the given options, the following are NOT strong acids or strong bases:NaCl (Sodium Chloride)…
Q: 11. A triprotic acid has a concentration of 0.150 M. The Ka1= 1.2x102, Ka2= 3.5x107, ka2= 4.6x10-12.…
A: Step 1:Step 2:Step 3:
Q: Experiment shows that the rate formation of carbon tetrachloride from chloroform, CH3 +Cl2 → CCl4 +…
A: Step 1:To determine if the proposed mechanism is consistent with the observed rate law, let's…
Q: Write the reduction half-reaction for Fe(s)+2H+(aq)→Fe2+(aq)+H2(g)Fe(s)+2H+(aq)→Fe2+(aq)+H2(g)
A: The objective of the question is to write the reduction half-reaction for the given chemical…
Q: Propose a step-by-step, detailed mechanism for the reaction depicted H3O+ HO
A:
Q: Sodium hydroxide is used to partially neutralize sulfuric acid from the one-pot Friedel-Crafts and…
A: To deprotonate a phenol with a pKa of 10.0, you would need a base with a higher pKa of its conjugate…
Q: What masses of dimethylamine and dimethylammonium chloride do you need to prepare 5.00 L of pH =…
A: Step-1: pH = 12Volume= 5LConcentration of both = 0.5M.pKa of dimethylamine= 10.73. Step 2: The…
Q: 1. Identify the following amino acid and a pH at which the structure would predominate: A. Y, pH…
A: The shown molecular structure is of tyrosine, which is also represented by one letter Y, among the…
Q: Don't provide hand writing solution
A:
Q: A student conducts a laboratory investigation of anaerobic respiration. The student places 10.0 g of…
A: The objective of this question is to determine whether all the glucose reacted during the…
Q: 2. i) Circle each stereogenic unit in the Structure provided and write its label directly below the…
A: The name of the given structure is (2S,3R,E)-3-methoxyhex-4-en-2-ol.It is chiral and therefore we…
Q: Precipitation Stoichiometry PL 1. When solutions of lead(II) nitrate and aluminum chloride are…
A: The objective of the question is to solve various problems related to precipitation stoichiometry.…
Q: None
A: Step 1: Step 2: Step 3: Step 4:
Q: Draw the structure(s) of the major organic product(s) of the following reaction. 1. dioxane / 25° +…
A:
Q: The reagents used for this reaction are H2SO4, HNO3, but what is the mechanism?
A: Step 1: Step 2: Step 3: Step 4:
Q: Which reaction will occur if each substance is in its standard state? Assume potentials are given in…
A: Approach to solving the question: I believe that this is the complete question together with its…
Q: A 3.55 gram sample of an unknown gas is found to occupy a volume of 1.72 L at a pressure of 805 mm…
A: Approach to solving the question: Detailed explanation: Examples: Key references:
Q: A 'H NMR spectrum is shown for a molecule with the molecular formula of C5H10O2. Draw the structure…
A: Step 1:
Q: Which best describes the following reaction? Each potential answer to this question consists of two…
A: Step 1: Step 2: Step 3: Step 4:
Q: Determine the cell reaction and standard cell potential for a cell made from a cathode consisting of…
A: The objective of this question is to determine the cell reaction and standard cell potential for a…
Q: م Suppose a powerful battery is connected between a pair of inert graphite electrodes dipped into a…
A: Thank you.
Q: Please don't provide handwritten solution ....
A: Approach to solving the question:we can use the concept of formation constant (Kf) to find the…
Q: 3
A: the number of 1,2,4-triazines with the molecular formula C₃HFIN₃, we need to consider the possible…
Q: Draw the missing organic structures in the following multistep synthesis. Show the final product at…
A: Step 1: Sodium ethoxide deprotonates the acidic proton of the compound, resulting in the formation…
Q: Name a list of anti depressants or antibiotics or antihypertensive drugs that consist of aromatic…
A: The objective of the question is to identify a list of anti-depressants, antibiotics, or…
Q: A galvanic cell is powered by the following redox reaction: 3+ 4 Fe (aq) + N₂H(aq) + 4OH (aq) → 4…
A: Step 1: At cathode reduction takes place.4Fe3+(aq)+4e−→4Fe2+(aq)Eo=0.771 V Step 2: At anode…
Q: Determine K for a reaction at 200 K if ∆G° =20.4 kJ/mol. (R = 8.314 J/mol ・ K)
A: Approach to solving the question: Detailed explanation: Examples: Key references:
Q: Chemistry
A: Step 1: Step 2: Step 3:
Q: None
A:
Q: Please please please answer everything super super fast
A: Step 1:.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- this is the gc from an experiment we did for the extraction of eugenol from clove oil. i just need the chemical compound associated with each peak labeled. thank you. A flowchart of the experiment is included as well. Thank you.To quantify the amount of ethanol in a beverage, a technician prepared the first solution which contained 4.90 grams unknown, 1.00 grams acetonitrile, and 4.10 grams water. After the GC analysis which reported the peak areas of 5,742 for ethanol and 3,829 for acetonitrile, the technician added 0.20 grams ethanol to the first solution and ran the GC analysis again. This time, the peak areas of 6,382 for ethanol and 3,709 for acetonitrile for solution 2 were obtained. What was the percent by mass ethanol in the original beverage?19 g of unknown organic sample was dissolve in 640 mL of Dicloromethane (DCM). The boiling point of benzene was increased by 3.78oC. Determine the molecular weight of the unknown sample? Kb of DCM = 2.42oC/m Bb of benzene = 39.6 oC density of benzene = 1.33 g/mL at 25 °C Round your answer to the nearest whole number, no units required.
- An analysis of city drinking water for total hardness was done by two students in the laboratory and produced the following results (in ppm CaCO3): Student A: 228.3, 226.4, 226.9, 227.1, and 228.6. Student B: 229.5, 226.1, 230.7, 223.8, and 227.5What is the 95% confidence interval for the mean?In the determination of the concentration of chloride ion in water five experiments were done: 254.3 ppm, 254.7 ppm, 249.9 ppm, 252.5 ppm, and 253.4 ppm. What is the relative average deviation of this experiment? (ppm=mg/LQuestions a, b, and c pertain to the following case:A formulation of rectal suppository contains 0.5 % (w/w) phenylephrine and 0.4 % (w/w) shark liver oil. Each suppository weighs 2.5 grams.a. How many milligrams of phenylephrine is present in each suppository?b. The specific gravity for shark liver oil is 0.95. How many milliliters of shark liver oil is needed if thirty suppositories are to be made? Round to the nearest hundredths place.c. Express the shark liver oil concentration as a ratio strength (w/w).
- A 0.1 g amine-containing compound is dissolved in water then diluted to 100 mL. You subject it to spectroscopic analysis, in order to get the concentration of amine in this compound. Next, you get 1 mL of the previously diluted sample then dilute it again to 250 mL for measurement. Then, you fill 3/4 of a 1-cm cuvette with this diluted sample, and you run an analysis using an AAS. The recorded absorbance is 0.545 at 410 nm. What is the molecular weight of the compound? (The molar absorptivity is 1.23 x 104 cm-1 mol-1 L.)Chromatography 1. External Standard Method A. Calculate the regression equation and the R-squared value. B. Calculate the concentration of cocaine found in the blood samples of the presidentiables. Which presidential candidate “reliably” tested positive for cocaine? 2. Internal Standard Method >Calculate the concentration of party drug X in the blood samples of the presidential candidates. >Suppose the LOD for party drug X is 0.200 ppm, which of the presidential candidates “reliably” tested for party drug X?These organic solvents are used to clean compact discs:(a) If a 15.00-mL sample of CD cleaner weighs 11.775 g at 20C, which solvent is most likely to be present?(b) The chemist analyzing the cleaner calibrates her equipment and finds that the pipet is accurate to 0.02 mL, and the balance is accurate to 0.003 g. Is this equipment precise enough to dis-tinguish between ethanol and isopropanol?
- After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40, a student found that her best fit linear line for FD&C Red 40 was y = 2,962x + 0.005. Her Kool-Aid sample had an absorbance of 0.685. If 0.543 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her 8-fl oz cup?A chemist working in a hospital clinical laboratory obtained the following values for uric acid in blood serum: 4.63, 4.58, 4.82, 4.31, 4.67 and 4.60 mg%. What value should be reported as the mean? Value of QT at 90 % confidence level is 0.56.Based on the chromatogram, what is the correct arrangement, from least to most nonpolar, of the given analytes? A. 1,3,2 B. 1,2,3 C. 3,2,1