Concept explainers
(a)
Interpretation:
The limiting reagent for the given reaction with listed value has to be determined.
Concept introduction:
Nitrobenzene
Mole calculation:
By dividing mass by it molar mass given the no.of moles.
(b)
Interpretation:
The theoretical yield for this reaction has to be calculated.
Concept introduction:
Limiting reagent: The reactant that runs out first in any given reaction is said to be limiting reagent.
Theoretical yield: The amount of product formed, assuming complete reaction of the limiting reagent.
Actual yield: The amount of product actually formed in a reaction.
Percent yield: The percentage of the theoretical yield actually obtained from a
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FUND.OF GEN CHEM CHAP 1-13 W/ACCESS
- Complete the following precipitation reactions using balanced chemical equations:arrow_forwardA 1.000-g sample containing bromide was dissolved in sufficient water to give 100.0 mL. A 50.00 mL aliquot was measured and after acidification, silver nitrate was introduced to precipitate AgBr, which was filtered, washed, and then dissolved in an ammoniacal solution of potassium tetracyanonickelate(II): Ni(CN)42- + 2AgBr(s) → 2Ag(CN)2- + Ni2+ + 2Br- The liberated nickel ion required 11.70 mL of 0.002146 M EDTA. The other 50.00 mL remaining solution was also analyzed for its Br- content by potentiometry using a metallic electrode of the second kind. e) Write the cell notation of the potentiometric set-up with SCE as the reference electrode. f) Write the Nernst equation that describes the indicator electrode set-up.arrow_forwardComplete the following reaction by filling in the necessary reagents. NH₂ S. 1) Br 2) Draw the product for the following reaction. Η N|H CH 3 1. CH3I (excess) 2. Ag₂O 3. A F Brarrow_forward
- The authors have used a chiral HPLC column (separating phase) to analyze compounds 4 and 5. Briefly describe a) the way a chiral HPLC column works to separate natural products of the Actinopyrone family and b) briefly comment on the general applicability of chiral HPLC columns in natural products research.arrow_forwardTrans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a melting point of (13.4C). Briefly explain the difference in melting points between the two. tw.arrow_forwardThe main constituents in vinegar are water and ethanoic acid (CH3COOH). In order to determine the concentration of acid in homemade vinegar, a student titrated 25 cm3 of 001 M NaOH against the vinegar. The equation for the reaction is: CH3COOH(aq) + NaOH(aq) ® CH3COONa(aq) + H2O(l) The following titration results were obtained: Burette readings (cm3) Rough 1 2 Final burette reading 20.10 38.90 31.40 Initial burette reading 0.10 20.00 12.50 Volume of vinegar used 20.00 18.90 18.90 (a) What volume of vinegar should be used in the calculation? (b) What is the mole ratio of NaOH:CH3COOH? (c) Calculate the number of moles of alkali in 25 cm3 of NaOH solution used. (d) How many moles of acid were used in the titration? (e) Calculate the…arrow_forward
- Identify the compound represented by the figurearrow_forwardFor the following monosaccharide, draw the products formed when treated with each reagent. H H -OH HO H HO H H― -OH CH₂OH Part 1 of 2 H2 in the presence of a Pd catalyst. Modify the Fischer projection of the monosaccharide to represent the product. H H -ОН HO H HO H H -OH CH₂OH Part 2 of 2 Benedict's reagent. Modify the Fischer projection of the monosaccharide to represent the product. H H -OH HO -Н HO H H -OH CH₂OH ☐ : G ☐ E ☐: ☑ P Garrow_forwardQuinine ( C20 H24 N2 O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug. For quinine, pK, = 5.1 and pK, = 9.7 ( pKp = – log Kp). Only 1 g quinine will dissolve in 1920.0 mL of solution. Calculate the pH of a saturated aqueous solution of quinine. Consider only the reaction | Q+ H2O= QH+ + OH- described by pK, where Q = quinine. pH =arrow_forward
- In the preparation of aspirin, You can do the functional group test to ensure the completion of the reaction. (a) What is the name of reagent used? (b) What is your observation if any unreacted starting material is present? (c) What is the name of the functional group responsible for this reaction?arrow_forwardPepto-Bismol, an antacid and antidiarrheal, contains bismuth subsalicylate, C7H5BiO4. Some users of this product can experience a condition known as “black tongue,” which is caused by the reaction of bismuth(III) ions with traceamounts of S2- in saliva to form a black precipitate. Write the balanced net ionic equation for this precipitation reaction.arrow_forwardFor the following reaction, 4.91 grams of water are mixed with excess chlorine gas. The reaction yields 12.5 grams of hydrochloric acid.chlorine (g) + water (l) hydrochloric acid (aq) + chloric acid (HClO3) (aq) What is the theoretical yield of hydrochloric acid ? grams What is the percent yield of hydrochloric acid ? %arrow_forward
- Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning