A student reacted 3.01g salicylic acid with 5.98mL acetic anhydride and isolated 2.85g Asprin. A) Calculate moles of salicylic acid used. B) Calculate the mass of acetic anhydride used. C) Calculate moles of acetic anhydride used. D) using moles of limiting reactant present, calculate the theoretical yield of aspirin. E) Calculate the percent yield of aspirin synthesis.

A student reacted 3.01g salicylic acid with 5.98mL acetic anhydride and isolated 2.85g Asprin. A) Calculate moles of salicylic acid used. B) Calculate the mass of acetic anhydride used. C) Calculate moles of acetic anhydride used. D) using moles of limiting reactant present, calculate the theoretical yield of aspirin. E) Calculate the percent yield of aspirin synthesis.

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter16: Solutions

Section: Chapter Questions

Problem 76E

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A student reacted 1.01g salicylic acid with 2.06mL acetic anhydride and isolated 1.40g aspirin. A) Calculate moles of acetic anhydride used. B) Using the moles of limiting reactant present, calculate the theoretical yield of aspirin. C) Calculate the percent yield of the aspirin synthesis.
An equation useful in these calculations is: (1st quantity) ?x (1st concentration) ?= (2nd quantity) x? (2nd concentration) Show your complete solution. 1. If a pharmacist will make a 10-gram Lassar’s Paste, containing 30% of Zinc oxide, using a prepared product with a concentration of 48%. Compute for the amount of white petrolatum (base) and amount of 48% Lassar’s paste needed for the dilution. Amount of white petrolatum (base) needed = Amount of 48% Lassar's paste needed =
An equation useful in these calculations is: (1st quantity) ?x (1st concentration) ?= (2nd quantity) x? (2nd concentration) Show your complete solution. Read the question carefully. 1. If a pharmacist will make a 10-gram Lassar’s Paste, containing 30% of Zinc oxide, using a prepared product with a concentration of 48%. Compute for the amount of white petrolatum (base) and amount of 48% Lassar’s paste needed for the dilution.Note: This is my 3rd time asking this same question but and the first two is incomplete.
ame: Table 2. Determination of Acetylsalicylic Acid in Aspirin. 1) Aspirin Brand (and amount of acetylsalicylic acid on label) 2) Average molar concentration of NaOH Solution B (from Part A) 3) 4) 5) 6) Mass of aspirin tablet Mass of pulverized aspirin sample Initial buret reading Final buret reading 7) Volume of NaOH Solution B added 8) Moles of NaOH 9) Moles of acetylsalicylic acid in sample 10) Mass of acetylsalicylic acid in sample 11) Amount of acetylsalicylic acid per tablet T₁ 1.264 12) Mean amount of acetylsalicylic acid per tablet 13) Standard deviation for acetylsalicylic acid per tablet 14) RSD for acetylsalicylic acid per tablet 15) Relative percent error (%) 16) Is the mean amount per tablet acceptable? (Yes or no.) 0.000153 * 180. Kg Imol T₂ √3 1.261 1-259 Seat กา Basic 8.25 mg 0.0975 M Trial 1* Trial 2 *Show all calculations related to Trial 1, standard deviation, RSD, and relative % error. Mole of NaOH (0.0975) (14.3) = 0.000139 (0.0975) (15.7) = 8.000 253 23 0.0975)…
e molarity of the acetic acid solution?
Justify the usage of the reagent choices also
2. How many mL of 0.10 M H,SO, can be made from 50.0 mL of 0.25 M H,SO,?
3. A student neutralized 25.0 cm³ of sodium hydroxide solution with 0,6 student carried out the experiment three times and obtained the following results. Experiment 3 Experiment 1 Experiment 2 Volume of Acid 19.90 17.30 17.40 Used/ cm3 (a) The student calculated the volume of acid used by calculating the average of the volume of acid used in Experiment 2 and Experiment 3. Explain why the first reading was not considered. (b) Calculate the amount (moles) of 0.6 moldm³ sulfuric acid in the average titre value used to neturalise the sodium hydroxide. (c) How many moles of sulfuric acid react with 1 mole of sodium hydroxide? (d) What amount (moles) of sodium hydroxide were there in the 25 cm³ sample?
What if not taken in excess?
To neutralize 0.035 moles of baking soda, one needs how many mole(s) of acetic acid?
1. What is the mass of 5 ul distilled water? 2. During in class pipetting practice, you verified the accuracy of your pipetting by weighing the dispensed liquid. This method is not applicable to volumes equal to or less than 5 ul. Why do you think is so? 3. Propose an alternative method to check your pipetting technique for very small volumes.
About 21.60 mL of 0.9944N sodium hydroxide solution required 20.40 mL of hydrochloric acid solution. What would be the weight of sodium bicarbonate equivalent with 22.25mL of HCl? A. 0.9392g B.1.2416g C. 1.9679g D. 1.0529g