If 2.06 g of salicylic acid (MM = 138.12 g/mol) is reacted with 9.7 mL of acetic anhydride (d=1.08 g/ml, MM= 102 g/mol) in the presence of 8 drops of sulfuric acid to get 70.6% percentage yield of impure aspirin (MM = 180.16 g/mol), then what is the mass of impure aspirin obtaineď? Write the answer in three sig. fig. Selected Answer: 1.90 Correct Answer: 1.89 + 0.1

If 2.06 g of salicylic acid (MM = 138.12 g/mol) is reacted with 9.7 mL of acetic anhydride (d=1.08 g/ml, MM= 102 g/mol) in the presence of 8 drops of sulfuric acid to get 70.6% percentage yield of impure aspirin (MM = 180.16 g/mol), then what is the mass of impure aspirin obtaineď? Write the answer in three sig. fig. Selected Answer: 1.90 Correct Answer: 1.89 + 0.1

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 178CP: You take 1.00 g of an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen),...

See similar textbooks

Similar questions

What is the molarity of each ion present in aqueous solutions of the following compounds prepared by dissolving 28.0 g of each compound in water to make 785 mL of solution? (a) potassium oxide (b) sodium hydrogen carbonate (c) scandium(III) iodite (d) magnesium phosphate
A 2.00-L bottle of a solution of concentrated HCl was purchased for the general chemistry laboratory. The solution contained 868.8 g of HCl. What is the molarity of the solution?
3.122 What type of reasoning were we using when we developed the equation for dilution, MiVi=MfVf ?
A student wants to prepare 1.00 L of a 1.00-M solution of NaOH (molar mass = 40.00 g/mol). If solid NaOH is available, how would the student prepare this solution? If 2.00 M NaOH is available, how would the student prepare the solution? To help ensure three significant figures in the NaOH molarity, to how many significant figures should the volumes and mass be determined?
You take 1.00 g of an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen), burn it in air, and collect 2.20 g CO2 and 0.400 g H2O. You know that the molar mass of aspirin is between 170 and 190 g/mol. Reacting 1 mole of salicylic acid with I mole of acetic anhydride (C4H6O3) gives you 1 mole of aspirin and 1 mole of acetic acid (C2H4O2). Use this information to determine the molecular formula of salicylic acid.
3.120 1f you have 32.6 g of sodium carbonate that is dissolved to give 2.10 L of solution, what is the molarity of the solution? What is the molarity of the sodium ions?
The present average concentration (mass percent) of magnesium ions in seawater is 0.13%. A chemistry textbook estimates that if 1.00 × 108 tons Mg were taken out of the sea each year, it would take one million years for the Mg concentration to drop to 0.12%. Do sufficient calculations to either verify or refute this statement. Assume that Earth is a sphere with a diameter of 8000 mi, 67% of which is covered by oceans to a depth of 1 mi, and that no Mg is washed back into the oceans at any time.
Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and acetic anhydride (C4H6O3) which has a molar mass of 102.04 g/mol. The density of acetic anhydride is 1.082 g/mL. C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 What is the yield, in grams, of aspirin (C9H8O4), which has a molar mass of 180.15 g/mol, possible when reacting 2.10 g of salicylic acid with 1.01 mL of acetic anhydride?
TCDD, also called dioxin (C12H4Cl4O2, molar mass 322.0 g/mol), is a potent poison. The average lethal dose in humans is estimated to be 3.0 ×10−2 mg per kg of body weight. (a) How manygrams constitute a lethal dose for a 73−kg individual? (b) How manymolecules of TCDD does this correspond to? (a) ×10 g dioxin(b) ×10 molecules
Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and acetic anhydride (C4H6O3), which has a molar mass of 102.04 g/mol. The density of acetic anhydride is 1.082 g/mL. C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 What is the theoretical yield, in grams, of aspirin (C9H8O4CX9HX8OX4), which has a molar mass of 180.15 g/mol, possible when reacting 3.02 g of salicylic acid with 3.51 mL of acetic anhydride?
Several years ago a tank car load (70,000 litres) of concentrated nitric acid spilled in a Denver, Colorado railyard. It was neutralized with sodium carbonate. How many kilograms of sodium carbonate were needed for complete neutralization? Concentrated nitric acid is 72% HNO3 by mass and has a density of 1.42 g/mL.
The maximum dose of sodium hydrogen phosphate (Na2HPO4, molecular mass = 142.0 amu) that should be taken in one day for use as a laxative is 3.8 g. How many moles of sodium hydrogen phosphate, how many moles of Na+ ions, and how many total moles of ions are in this dose?