Introduction to General, Organic and Biochemistry
12th Edition
ISBN: 9780357119303
Author: Bettelheim, Frederick A., Brown, William H., Campbell, Mary K., FARRELL, Shawn O., Torres, Omar
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 51P
Aspirin is prepared by the reaction of salicylic- acid with acetic anhydride as shown in the following equation. The stoichiometry of the reaction is given in the equation. Acetic acid is a by-product of the reaction and must be separated and removed so that aspirin can then be sold as a pure product. How many grams of aspirin can be prepared from 120 grams of salicylic acid? Assume that there is an excess of acetic anhydride. (Chapter 4)
Acetylsalieylic acid
(Aspirin)
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1.In the preparation of aspirin, 6.0 grams of salicylic acid was made to react with acetic
anhydride gnbydride forming 4 grams of aspirin. Calculate the % yield of aspirin.
2. calculate the amount of sodium salt of aspirin obtained from the preparation.
A student carried out the synthesis of aspirin as described using 3.00 g of salicylic acid and 6.0 ml. of acetic anhydride and obtained 1.306 g of aspirin.
(a) Calculate the amount of salicylic acid used in moles:
(salicylic acid molar mass: 138.12 g/mol)
(b) Calculate the mass (g) of acetic anhydride used:
(acetic anhydride density: 1.08 g/cm³, Molar mass: 102.09 g/mol)
(c) Calculate the amount of acetic anhydride used in moles:
(d) Which one is the limiting reactant?
Calculate the total mol amount of gaseous products that form from the combustion of the 20.0 mL of toluene.
Chapter 10 Solutions
Introduction to General, Organic and Biochemistry
Ch. 10.3 - Prob. 10.1QCCh. 10.4 - Prob. 10.2QCCh. 10.4 - Prob. 10.3QCCh. 10.4 - Prob. 10.4QCCh. 10.4 - Prob. 10.5QCCh. 10.4 - Prob. 10.6QCCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - 10-9 Is there any difference between vanillin made...Ch. 10 - Prob. 4P
Ch. 10 - 10-11 What important experiment did Wohler carry...Ch. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - 10-15 How many electrons are in the valence shell...Ch. 10 - 10-16 What is the relationship between the number...Ch. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - 10-19 Write Lewis structures for these ions. (a)...Ch. 10 - 10-20 Why are the following molecular formulas...Ch. 10 - 10-21 Explain how to use the valence-shell...Ch. 10 - 10-22 Suppose you forget to take into account the...Ch. 10 - Suppose you forget to take into account the...Ch. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - 10-27 What is meant by the term functional group?Ch. 10 - 10-28 List three reasons why functional groups are...Ch. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - 10-32 Draw a structural formula for the one...Ch. 10 - 10-33 What is the meaning of the term tertiary (...Ch. 10 - Prob. 28PCh. 10 - Draw structural formulas for each of the...Ch. 10 - 10-36 Draw structural formulas for the six ketones...Ch. 10 - 10-37 Draw structural formulas for the eight...Ch. 10 - Prob. 32PCh. 10 - 10-39 (Chemical Connections 10A) How was Taxol...Ch. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Silicon is immediately below carbon in Group 4A of...Ch. 10 - 10-43 Phosphorus is immediately below nitrogen in...Ch. 10 - Draw the structure for a compound with the...Ch. 10 - 10-45 Draw structural formulas for the eight...Ch. 10 - Prob. 40PCh. 10 - 10-47 Which of these covalent bonds are polar, and...Ch. 10 - Of the bonds in Problem 10-47, which is the most...Ch. 10 - Prob. 43PCh. 10 - Prob. 44PCh. 10 - Following is a structural formula for naphthalene....Ch. 10 - Prob. 46PCh. 10 - Prob. 47PCh. 10 - Urea, (NH.,)2CO, is used in plastics and in fertil...Ch. 10 - Prob. 49PCh. 10 - Prob. 50PCh. 10 - Aspirin is prepared by the reaction of salicylic-...Ch. 10 - Following is the structural formula of acetamide....Ch. 10 - Prob. 53P
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- Aspirin can be synthesized in the lab by combining salicylic acid (C7H6O3)C7H6O3) and acetic anhydride (C4H6O3)C4H6O3) to form aspirin (C9H8O4)C9H8O4) and acetic acid (C2H4O2).C2H4O2). The balanced equation for this reaction is C7H6O3+C4H6O3⟶C9H8O4+C2H4O2C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 A student started with 3.81 mL3.81 mL acetic anhydride (density=1.08 g/mL)(density=1.08 g/mL) and 2.40 g2.40 g salicylic acid. The student synthesized 2.54 g2.54 g of aspirin. What is the limiting reactant of the equation and the theoretical and percent yield of aspirin?arrow_forwardAspirin can be synthesized in the lab by combining salicylic acid (C7H6O3)C7H6O3) and acetic anhydride (C4H6O3)C4H6O3) to form aspirin (C9H8O4)C9H8O4) and acetic acid (C2H4O2).C2H4O2). The balanced equation for this reaction is C7H6O3+C4H6O3⟶C9H8O4+C2H4O2C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 A student started with 3.37 mL3.37 mL acetic anhydride (density=1.08 g/mL)(density=1.08 g/mL) and 1.94 g1.94 g salicylic acid. The student synthesized 1.91 g1.91 g of aspirin. Select the limiting reactant. a.salicylic acid (C7H6O3C7H6O3) b.acetic acid (C2H4O2C2H4O2) c.aspirin (C9H8O4C9H8O4) d.acetic anhydride (C4H6O3C4H6O3) Calculate the theoretical yield of aspirin (C9H8O4).C9H8O4). theoretical yield: Calculate the percent yield for aspirin (C9H8O4).C9H8O4). percent yield:arrow_forwardWhat mass of oxygen is needed for the complete combustion of 6.80×10^-3g of methanearrow_forward
- Identify the acid and the base whose combination forms the common salt that you use in your food. Write its formula and chemical name of this salt. Name the source from where it is obtained ?arrow_forwardWhat mass of water is produced from the complete combustion of 6.80 ×10^-3 g of methanearrow_forwardAspirin (acetylsalicylic acid) is a synthetic organic derived from salicylic acid. The reaction that is used for the synthesis is shown here. HO. HO, HO. HO, Salicylic acid Acetic anhydride Aspirin Acetic acid Answer the following questions based on the reaction above. Salicylic acid = C;H6O3, acetic anhydride = C4H603, aspirin = C9H3O4, acetic acid = HC2H3O2 %3D %3D %3D 7. Fill in all 3 stoichiometric conversions that properly calculate how many grams of aspirin willI be made from 12.5 g C,H6O3. Molar masses: C,H6O3 - 138.12 g/mol, C4H6O3 - 102.09 g/mol, aspirin – 180.15 g/mol C7H6O3 + C4H6O3 → C9H8O4 + HC2H3O2 12.5 g C7H603 x- 16.3 g aspirin Limiting Reagent Problem Using the same chemical equation for the synthesis of aspirin, determine how much aspirin is made from 6.20 g of C;H6O3 and 4.05 g of C4H6O3. Fill in each conversion train to figure out how much aspirin would be produced from each of those starting quantities of reactants. g C,H,03 × g aspirin g C4H603 x g aspirinarrow_forward
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