Electrophilic Aromatic Substitution – Nitration of Bromobenzene

only the questions pls disregard the experiment results thank you

Answer last 3

What factors during the experiment caused the percent yield to be different than 100%? What impurities may be present in the final product (look at the spectroscopic data for evidence of this), and how does that effect the percent yield calculation? I got 64% for the percent yield.

A student use the same protocol as in the lab manual to extract benzoic acid, phenol, and naphthalene. Below are the steps he took Step 1 - Dissolve all three in 15 ml ether and place in separatory funnel Step 2- Add 15 ml of sodium carbonate and mix well Step3 - Isolate the aqueous layer and Add hydrochloric acid, which resulted in a precipitate Step 4- Add 15 ml of sodium hydroxide to the ether layer and mix Step 5- Isolate the aqueous layer and add hydrochloric acid, which resulted in a precipitate. Step 6- dry the ether layer and collect the solid that is left

How do we detect organic compounds and inorganic compounds used in GC analysis?

10. Fractional Distillation: This lab was viewed via a video and described in detail in lab class. You are distilling apart hexane (bp = 68) and toluene (bp 110). Your boiling point for the first fraction is 48°C. Why is the boiling point so low (most likely reason)? !! azeotrope with water non-resonance of hexane O resonance of toluene student error O seriously impaired thermometer

10) Write an equation for the reaction of n-propyl magnesium chloride and butanal (Not 3- methylbutanal). Why was it important to have dry equipment that was heated in oven and a drying tube placed on top of the condenser for the above-mentioned reaction? Explain?

OH 0140769 filler EXPERIMENT 11 RADICAL COUPLING REACTION (Preparation of 1, 1-bis-2-naphthol) FeCl3 - Drop of H₂O - Grinding - rt OH 1.13909 1, 11199 1.13579 Chemicals Required: 2.88069 2.8843 2-Naphthol - 2.88 g Iron(III) chloride - 1.10 g Water - 2 drops -sumins 2.88 242 Toluene (for recrystallization) 640 41725 P Procedure: 2.8 0.1082 Grind a mixture of 2-naphthol (2.88 g) and iron(III) chloride (1.10 g) with 2 drops of water in an agate (or porcelain) mortar pestle for about 20 minutes. Allow the mixture to stand for 1 hr 10 mins with a little grinding now and then. Transfer the mixture with water (40 ml) into a 100 ml beaker and boiled for 10-15 minutes. Cool the mixture and filter the product, wash with boiling water (10 ml), dry and recrystallize from toluene. Report the yield and melting point of the product. Remember to hand in your product. Data Treatment and Analysis 1. Calculate the % yield for the product and show your working. Determine the % error if possible. 2.…

Answer the question below directly. Why methanol is a good solvent for UV but not for IR?

I need answer within 20 minutes please please with my best wishes

b. When added to an immiscible mixture of dichloromethane and water, which layer would you expect the following compounds to primarily be found in? Explain. i. limonene CH3 CH3 CHM 2070 Lab Fall 2020 ii. acetic acid HOCH3 i. benzaldehyde

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The Background section of this lab explains why weight percent (%w/w) can be useful for comparing the relative amount of a desired or "active" compound in different products. During the lab, a major goal will be to decide which of your experiment flasks yield data that would allow you to correctly calculate the %w/w of sodium bicarbonate in these tablets. Let's assume that you correctly choose one flask for this calculation. If the amount of NaHCO3 in that flask was 2.80 g and the original weight of the tablet was 4.50 g, what is the %w/w NaHCO3 in the tablet that went into this flask? GIVE YOUR ANSWER TO TWO DECIMAL PLACES. Your Answer: Answer

Question 6 Question 6-1: Aromatic ethers can lose a neutral alkene molecule during fragmentation in a mass spectrometer as shown in Figure 6. What is the structure of the alkene formed by phenyl ethyl ether? [Give a SMILES notation.] Your answer Figure 6 H Your answer 0 Question 6-2: The loss of the alkene generates a fragment that registers the base * peak in the mass spectrum. What is the m/z value of the base peak?

Draw the structure of the major organic product you would expect from the reaction of 1-bromopropane with Nal. You do not have to explicitly draw H atoms. • Draw only the product derived from 1-bromopropane. Do not draw other organic by-products.

A common lab experiment is the dehydration of cyclohexanol to cyclohexene. Explain why mass spectrometry might not be a good way to distinguish cyclohexene from cyclohexanol.

The unknown organic substances which were critric acid, acetone, urea, beazaldehyda, glycerol, and MTBE was done in an experiment- use this to answer the questions. (Note: there was no boiling point or melting point done in this experiment however their reaction to NaHCO3 was done)   a)Compare what you originally expected to identify at each step of the flow chart to what you identified. Were your predictions close to what you expected? Elaborate on your response. b)What was the biggest challenge you faced in differentiating between the functional groups? Were there any that were difficult to distinguish between? Why? b) Do you think this flow chart could be used to identify functional groups in a molecule that contains multiple different functional groups? Discuss. And how would you improve this flow chart procedure to better identify the organic compoun? (Flow Chart Below)

A student use the same protocol as in the lab manual to extract 4 chloroanilline, benzoic acid and naphthalene. Below are the steps he took Step 1 - Dissolve all three in 15 ml ether and place in separatory funnel Step 2- Add 15 ml of hydrochloric acid and mix well Step 3 - Isolate the aqueous layer and add sodium hydroxide which resulted in a precipitate Step 4- Add 15 ml of sodium carbonate to the ether layer and mix Step 5- Isolate the aqueous layer and add hydrochloric acid, which resulted in a precipitate. Step 6- dry the ether layer and collect the solid that is left

Please answer question 12 ONLY. (Ignore question 11.)

only do number 4 please

1. A compound of molecular formula C5H100 forms a yellow precipitate with reagent and a yellow precipitate with reagents for the iodoform test. 2,4-dinitrophenylhydrazine a) Draw the structural formulae on a piece of paper, take a picture of them and upload the image below. b) Name the two (2) compounds that fit these tests.

Question 3: UV Spectroscopy (Beer's Law) The molar absorptivity of an organic compound is 15,000 M-¹cm-¹ a. b. What concentration of this compound would give an absorbance of 0.75? (Assume a light path of 1.0 cm and calculate the concentration in moles per liter.) How would the absorbance change if the light path was changed to 2.0 cm?

A student mixes 42.7 mL of acetone (58.08 g/mol, 0.791 g/mL) with excess benzaldehyde and NaOH to produce 79.1 g of (1E,4E)-1,5-diphenylpenta-1,4-dien- 3-one (234.29 g/mol). What is the percent yield of this student's experiment? Your Answer:

Please answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM BROMIDEAND ITS SUBSEQUENT CONVERSION TO AN ALCOHOL To the reaction flask were added 2.5967 gram of magnesium turnings, about 20 mlof diglyme, and a solution of 13.5942 gram of butyl bromide in about 25 mldiglyme.The procedure as per the lab manual was initiated. After the required heating timewas completed the reaction mixture was allowed to cool to room temperature.Then a solution of 6.1123 gram of acetone in about 15 ml of diglyme was addeddropwise as per the lab manual.The rest of the lab manual procedure was completed, ultimately affording 2.5532gram of an oily, clear and slightly yellow liquid, presumed to be 2-methyl-2-hexanol. Boiling point as measured by distillation was 138 – 141 deg C.About 0.8 ml of the presumed 2-methyl-2-hexanol was placed in an NMR tube towhich was added 2 drops of TMS. The tube was capped, then inverted and righted20 times to thoroughly mix the product and…

Please answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM BROMIDEAND ITS SUBSEQUENT CONVERSION TO AN ALCOHOL To the reaction flask were added 2.5967 gram of magnesium turnings, about 20 mlof diglyme, and a solution of 13.5942 gram of butyl bromide in about 25 mldiglyme.The procedure as per the lab manual was initiated. After the required heating timewas completed the reaction mixture was allowed to cool to room temperature.Then a solution of 6.1123 gram of acetone in about 15 ml of diglyme was addeddropwise as per the lab manual.The rest of the lab manual procedure was completed, ultimately affording 2.5532gram of an oily, clear and slightly yellow liquid, presumed to be 2-methyl-2-hexanol. Boiling point as measured by distillation was 138 – 141 deg C.About 0.8 ml of the presumed 2-methyl-2-hexanol was placed in an NMR tube towhich was added 2 drops of TMS. The tube was capped, then inverted and righted20 times to thoroughly mix the product and…

In IR absorption spectra of a compound, strong absorptions at 3300 cm and 2100 to 2260 cm were observed. What functional group might the compound contain? a. Alkyne b. Alkene с. Alcohol d. Carboxylic acid

Electronic cinfiguration of carbon

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