Answer:
Aspirin synthesis:
Q. (l) Type of reaction ----- esterification reaction (Answer)
This is a substitution reaction in which alcohol (the –OH group in salicylic acid) reacts with acetic anhydride to form an ester, aspirin
Q (o) For question (o) you need to take an average of question (m) then subtract it by question (n).
So, the mass of dry aspirin is = {(2.251+2.2)/2} - 1.466 = 0.7595 (Answer)
Q. (p) Percent yield = (mass of dry aspirin / theoritical yield of aspirin ) *100%
So, Percent yield = ( 0.7595/1.91)*100% = 39.76 % (answer)
PART I
(A) question (c)
Density of Salicylic acid = 1.44 g/cm³ , weight taken = 0.2 g and moles = 0.0052
volume = (0.2/1.44)= 0.1389 ml
molarity (moles per liter )= (0.0052/0.1389) moles per ml = 0.03744 * 1000 = 37.44 moles per liter =37.44 M ( Answer).
PART I
Question (B)
please help me answer the other missing part as soon as possible. Thank you I hope...
density= 1.08g/mL molar mass = 102.09 DateULIT A. Preparation of Aspirin 2.931 mol EE 5.0 ml Mass of salicylic acid used Moles of salicylic acid used Volume of acetic anhydride used Moles of acetic anhydride used Identity of limiting reactant Theoretical yield of aspirin mol mol Calculations: B. 44.512 Yield Determination Mass of watch glass + filter paper Mass of watch glass, filter paper and dry aspirin Mass of dry aspirin Percent Yield Calculations: 103 Chemistry 131. EXPERIMENT 10
Mass 125 ml flask: 92.705g Mass 125 ml flask + salicylic acid: 95.706g Mass of salicylic acid used: 3.001g Mass of weighing boat + filter paper: 5.228g Mass weighing boat + filter paper + crystals (air dried): 7.574g Mass of dry crystals (aspirin/ASA): 2.346g Questions: 1. Find moles of salicylic acid. 2. Find theoretical mass of acetyl salicylic acid. 3. Find percent yield of reaction.
i am stuck on the last two parts of the table. cpuld you check my work and complete the questions? Part IlI Beer's Law Data for Salicylic Acid Standard Solutions Concentration Trial 2.180 | 2.90x10.ฯ าเว 0.9866 Best-fit line equation for the salicylic acid standards 33640. Test of the Purity of the Synthesized Aspirin Initial mass of aspinin sample (g) Absorbance of aspirin sample Moles of salicylic acid in aspirin sample (mol) Mass of salicylic acid in aspirin sample (g)...
hi team! could i have some help filling in the blanks? Also, could you please double-check my answers at the bottom of the page? info: mass of filter paper + weigh boat = 3.051 g mass of filter paper + weigh boat + dry aspirin = 4.971 g mass of aspirin = 1.92 g Data and Results: Preparation of Aspirin Section Mass of salicylic acid used Volume of acetic anhydride used Mass of acetic anhydride used (density = 1.08 g/mL.)...
can you please help me with this !!! which ever you can is fine, please... thanks ! Results/Data • Aspirin synthesis salicylic acid: 2.0 g Acetic anhydride: 2 mL d= 1.082g/ml sodium acetate: 0.4 g • Experimental yield of aspirin: 2.4 g REPORT DATE: NAME: LAB PARTNER: I PREPARATION OF METHYL SALICYLATE (OIL OF WINTERGREEN): Reaction Odor: Color after addition of FeCl solution: Control Odor: Color after addition of FeCl3 solution: Question Which functional group of salicylic acid forms a...
please help me ! do you think this is good so far ? Results/Data • Aspirin synthesis salicylic acid: 2.0 g Acetic anhydride: 2 mL d= 1.082g/mL sodium acetate: 0.4 g • Experimental yield of aspirin: 2.4 g FORMATION OF ESTERS II. PREPARATION OF ACETYL SALICYLIC ACID (ASPIRIN): 1 Complete the table below by entering appropriate values into the empty boxes. Show calculations for all entries clearly below. Reactants Chemical MW Grams of Moles of Moles of Limiting Melting Formula...
A student noticed that after drying the aspirin for a week in his drawer, the aspirin crystals appeared to be dry but the filter paper was still damp. He went ahead and performed the weighing as directed in the procedure. Did the damp filter paper affect any of the following? In each case, briefly explain your answer. 2. a. theoretical yield b. calculated actual yield calculated percent yield C. Name Class & Section Preparation of Aspirin - Report Form Data...
i did the synthesis of aspirin experiment and got the data below. how do you do the theoretical yield? percent yield of the pure aspirin? DATA: Mass of Salicylic Acid: 2.034g Volume of Acetic Anhydride used in synthesis: 4.00ml Mass of filter paper: 0.196g Mass of filter paper plus Aspirin: 1.868g Mass of Aspirin: 1.672g Percent Yield of Pure Aspirin: I Experimental Procedure HAZARD: Sulfuric acid, acetic anhydride and glacial acetic acid are corrosive to the skin. They are also...
Name Lab Partner Lab Section Date Lab 9 DATA Part A: Synthesis of Aspirin Mass of salicylic acid 1.047 g Mass of watch glass 37.3959 Mass of watch glass + dry product 38.1409 Calculated mass of dry product 0.7459 Melting range of product 136-140 Addition of FeCl, to salicylic acid Addition of FeCl, to product Theoretical yield of aspirin Show calculation: Percent yield of aspirin product Show calculation:
Please use picture #1 to answer the chemistry questions in picture #2. Thank you Calculate the theoretical yield of the aspirin. Show all work: 2.50x 180 aSpirin DATA TABLE for ASPIRIN: Mass of salicylic acid (g): Mass of filter paper (g): Calculated theoretical yield of &.So aspirin product: 3.26 Salycylic acid color with Fer FeCl, color tests Your aspirin color with FeCl: Dark pure - Part 2: Mass of acetylsalicylic acid (aspirin) after drying and filter paper Mass aspirin) Calculate...