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7. Experimental data (0.5 point total) a. If starting with 1.0 g of racemic phenylsuccinic acid,...
8. Polarimetry data a. A student took 0.375 g of the product, (S)-phenylsuccinic acid, and dissolved...
8. Polarimetry data a. A student took 0.375 g of the product, (S)-phenylsuccinic acid, and dissolved it in 9.8 mL of acetone. This solution was placed in the observation tube and then the observed rotation was determined. The observed rotation, lobs, was 5.433 i. Given the observed rotation and the pathlength of the polarimeter cell (1 dm), calculate the specific rotation, (a). (1 point) ii. With your answer from 8i, calculate the enantiomeric excess, %ee. Optically pure (5)-(+)-phenylsuccinic acid is...
This is the chemical equation 4. Write the balanced chemical equation for the formation of the...
This is the chemical equation
4. Write the balanced chemical equation for the formation of the (S.S.S)-bis-proline phenylsuccinic acid salt and the (S,R,S)-bis-proline phenylsuccinic acid. Start with 4 y equivalents of (S)-proline and two equivalents of racemic phenylsuccinic acid. (1.0 point). 5. Write the balanced chemical equation for the formation of (S)-phenylsuccinic acid. Start with one equivalent of (5.5.S)-bis proline phenylsuccinic acid salt and two equivalents of hydrochloric acid. (1.0 point). 6. Draw the full arrow.pushing mechanisms for the equations...
Starting with 1.0 g of 1-methylcyclohexanol, you recover 0.5 g of 1- methylcyclohexene. What is the...
Starting with 1.0 g of 1-methylcyclohexanol, you recover 0.5 g of 1- methylcyclohexene. What is the percent yield? 1) 100 2) 30 3) 49 4) 60 Question 3 (2 points) Which of the following cations is most stable? 1) the methyl cation 2) the tert-butyl cation 3) the iso-propyl cation Question 4 (2 points) What is the role of sulfuric acid in today's reaction? Question 4 (2 points) What is the role of sulfuric acid in today's reaction? 1) It...
10. Calculate the theoretical yield of aspirin using 4.00 g of salicylic acid as the starting...
10. Calculate the theoretical yield of aspirin using 4.00 g of salicylic acid as the starting material. Assume acetic anhydride is in excess. (Hint: from the mass of salicylic acid acid use, how many moles of salycilic acid are present intitially? What is the salycilic acid : acetylsalicylic acid molar ratio? How many moles of acetylsalicylic acid are formed assuming 100% yield? Based on this abount of moles, how many grams of acetylsalicylic acid are formed? (this is the theoretical...
Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch...
Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium carbonate (c) Mass of sodium carbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 125.99 126.3 g 0.499 126. 29 125-8 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium carbonate and sodium chloride. Show...
help with all please 3. Explain the difference in reactivity between organolithium reagents (eg CH Li)...
help with all please
3. Explain the difference in reactivity between organolithium reagents (eg CH Li) and grignard reagents (e.g CHMOX). In other words, which one is more reactive and why? hos Molecular Weight 181.31 Molecular Weight: 106.55 Density: 1.03 g/mL Molecular Weight: 226.32 4. In the above reaction, assume that you plan to use 0.5 mL of the starting acid chloride with 10 mL of 1.0 M phenylmagnesium bromide. Which would be the limiting reagent? What is the theoretical...
help with # 7 Data Table: Reactant 1 Identity_NaCO,H,O 124.00 g/mol Mass 1.02 g Reactant 2...
help with # 7
Data Table: Reactant 1 Identity_NaCO,H,O 124.00 g/mol Mass 1.02 g Reactant 2 Identity_MnS0, H,0 169.02 g/mol Mass_1.04 g Observation of chemical reaction. Include observations about color of precipitate! Immediately after adding the two aqueous solutions together a pale pink precipitate formed. 1.49 g Mass of filter paper + precipitate Mass of filter paper Mass of precipitate (actual yield) 0.83 g 0.66 g Analysis: 1. Write the balanced chemical equation for this reaction. 2. Use a solubility...
Please answer the following questions/fill in the data tables based on the following experiment. EXPERIMENTAL PROCEDURE:...
Please answer the following questions/fill in the data tables based on the following experiment. EXPERIMENTAL PROCEDURE: Place sodium hydroxide (2.500 g) in a 100 mL Erlenmeyer flask and add water (25.0 mL) and ethanol (20.0 mL). Add a magnetic stirrer bar and stir until all the NaOH has dissolved. To a second reaction vessel, add benzaldehyde (2.650 g, 0.025 mol) and acetone (0.725 g, 0.0125 mol). Add approximately half of the aldehyde-ketone solution to the sodium hydroxide solution, and stir...
Data Table 1 Mass of flask and oxalic acid (g) 117.43 Mass of empty flask (g)...
Data Table 1 Mass of flask and oxalic acid (g) 117.43 Mass of empty flask (g) 116.93 Mass of oxalic acid (g) 0.5 Moles of oxalic acid (mol) Final volume of NaOH (mL) 17 Initial volume of NaOH (mL) 5 Volume of NaOH used (mL) 12 Moles of NaOH (mol) Molarity of NaOH (M) Data Table 2 Mass of flask and vinegar (g) 126.61 Mass of empty flask (g) 121.63 Mass of vinegar (g) 4.98 Final volume of NaOH (mL)...
Exercise 7: The % Yield of Aspirin Name Date Read Exercise 7 in your lab manual....
Exercise 7: The % Yield of Aspirin Name Date Read Exercise 7 in your lab manual. Complete the Pre-lab Assignment. In this substitute lab exercise, you will watch a short video on preparing aspirin. The video is posted on the course Moodle page, and it provides the masses of the reactants and the product; you should be able to calculate the theoretical yield and the % yield from the data given by the video. Submit the completed assignment by March...
8. Polarimetry data a. A student took 0.375 g of the product, (S)-phenylsuccinic acid, and dissolved it in 9.8 mL of acetone. This solution was placed in the observation tube and then the observed rotation was determined. The observed rotation, lobs, was 5.433 i. Given the observed rotation and the pathlength of the polarimeter cell (1 dm), calculate the specific rotation, (a). (1 point) ii. With your answer from 8i, calculate the enantiomeric excess, %ee. Optically pure (5)-(+)-phenylsuccinic acid is...
This is the chemical equation
4. Write the balanced chemical equation for the formation of the (S.S.S)-bis-proline phenylsuccinic acid salt and the (S,R,S)-bis-proline phenylsuccinic acid. Start with 4 y equivalents of (S)-proline and two equivalents of racemic phenylsuccinic acid. (1.0 point). 5. Write the balanced chemical equation for the formation of (S)-phenylsuccinic acid. Start with one equivalent of (5.5.S)-bis proline phenylsuccinic acid salt and two equivalents of hydrochloric acid. (1.0 point). 6. Draw the full arrow.pushing mechanisms for the equations...
Starting with 1.0 g of 1-methylcyclohexanol, you recover 0.5 g of 1- methylcyclohexene. What is the percent yield? 1) 100 2) 30 3) 49 4) 60 Question 3 (2 points) Which of the following cations is most stable? 1) the methyl cation 2) the tert-butyl cation 3) the iso-propyl cation Question 4 (2 points) What is the role of sulfuric acid in today's reaction? Question 4 (2 points) What is the role of sulfuric acid in today's reaction? 1) It...
10. Calculate the theoretical yield of aspirin using 4.00 g of salicylic acid as the starting material. Assume acetic anhydride is in excess. (Hint: from the mass of salicylic acid acid use, how many moles of salycilic acid are present intitially? What is the salycilic acid : acetylsalicylic acid molar ratio? How many moles of acetylsalicylic acid are formed assuming 100% yield? Based on this abount of moles, how many grams of acetylsalicylic acid are formed? (this is the theoretical...
Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium carbonate (c) Mass of sodium carbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 125.99 126.3 g 0.499 126. 29 125-8 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium carbonate and sodium chloride. Show...
help with all please
3. Explain the difference in reactivity between organolithium reagents (eg CH Li) and grignard reagents (e.g CHMOX). In other words, which one is more reactive and why? hos Molecular Weight 181.31 Molecular Weight: 106.55 Density: 1.03 g/mL Molecular Weight: 226.32 4. In the above reaction, assume that you plan to use 0.5 mL of the starting acid chloride with 10 mL of 1.0 M phenylmagnesium bromide. Which would be the limiting reagent? What is the theoretical...
help with # 7
Data Table: Reactant 1 Identity_NaCO,H,O 124.00 g/mol Mass 1.02 g Reactant 2 Identity_MnS0, H,0 169.02 g/mol Mass_1.04 g Observation of chemical reaction. Include observations about color of precipitate! Immediately after adding the two aqueous solutions together a pale pink precipitate formed. 1.49 g Mass of filter paper + precipitate Mass of filter paper Mass of precipitate (actual yield) 0.83 g 0.66 g Analysis: 1. Write the balanced chemical equation for this reaction. 2. Use a solubility...
Exercise 7: The % Yield of Aspirin Name Date Read Exercise 7 in your lab manual. Complete the Pre-lab Assignment. In this substitute lab exercise, you will watch a short video on preparing aspirin. The video is posted on the course Moodle page, and it provides the masses of the reactants and the product; you should be able to calculate the theoretical yield and the % yield from the data given by the video. Submit the completed assignment by March...
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