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Question 9 Not vet answeredthat starts with 8.4 mL of cyclohexanol and ends with 1.5 g...
Question 9 Not yet answered Given the following atomic weights, that the density of acetic acid...
Question 9 Not yet answered Given the following atomic weights, that the density of acetic acid is 1.05, and that 7.0 g of isoamyl alcohol, 7.4 mL of acetic acid, and 0.5 mL of sulfuric acid make 6.3 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures. C = 12, H = 1, 0 =16 Marked out of 1.00 P Flag question Answer:
this is a three part question, please. Assume you performed the reaction in the above question...
this is a three part question, please.
Assume you performed the reaction in the above question using the amounts of reactants shown below and you obtained 1.14 g of reaction product. • 1-phenyl-1,2-propanedione (2.10 mL) • sodium borohydride (0.200 g) FOR THIS QUESTION, USE THE EXACT INFO BELOW IN YOUR CALCULATIONS OR YOU WILL OBTAIN A WRONG ANSWER AND NOT RECEIVE CREDIT atomic weights = C, 12.0; H, 1.01; 0, 16.0; Na, 23.0; B, 10.8; density of 1,2-phenyl-1,2-propanedione = 1.10...
QUESTION 9 The density of acetonitrile, C2H3N, is 0.786 g ml. mass of acetonitrile does this represent? Suppose 1...
QUESTION 9 The density of acetonitrile, C2H3N, is 0.786 g ml. mass of acetonitrile does this represent? Suppose 16.1 ml. of acetonitrile is added to a reaction vessel. What QUESTION 10 Suppose 62.9 ml. of dichloromethane, CH2Cl2, was added to a reaction vessel. Using the density of 1.3266 g ml", how many moles does this represent? QUESTION 11 Consider the following chemical reaction: 4HCI + MnO2 - MnCl2 + 2H2O + Cl2 When 0.494 mol of HCI reacts stoichiometrically with...
Use the following atomic weights & quantities to calculate overall % yield of diphenylacetylene. Remember that...
Use the following atomic weights & quantities to
calculate overall % yield of diphenylacetylene. Remember that your
yield must be based on the limiting reagent, and that grams must be
converted to moles. For problems not involving a one to one
stoichiometry ot may be easier to calculate the theoretical yield
in grams from both reagents to determine which is truly the
limiting reagent. Filling out most of the chart will help. Give
ONLY two significant digits in your answer....
S Ketone Aldehyde 9. Based upon the procedure given below, answer the following questions about the...
S Ketone Aldehyde 9. Based upon the procedure given below, answer the following questions about the aldol condensation reaction: "In a clean 50 mL Erlenmeyer flask, add the ketone (0.5 g), aldehyde (2.0 mL), 95 % ethanol (10 mL) and 2 M aqueous sodium hydroxi de." Assume the aldehyde and ketone are the answers you provided in Question 8. a. Determine the limiting reagent for the above reaction. Only perform calculations on the organic reactants. Write out all calculations to...
just need answer, which letter. TAL 1. (20pts) A student reacted 4.0 g of 2-hydroxybenzoic acid...
just need answer, which letter.
TAL 1. (20pts) A student reacted 4.0 g of 2-hydroxybenzoic acid (C H6O3, MW 138 g/mol) with 4.0 mL of acetic anhydride (CH603, MW 102 g/mol) and 1 g of concentrated sulfuric acid.(MW 98) After workup, the student isolated 2.5 g of aspirin (MW 180). The density of acetic anhydride is 1.08 g/mL. (atomic weights: C. 12, H 1; 0, 16, S. 32) 1a. The limiting reagent is a) 2-hydroxybenzoic acid b) acetic anhydride c)...
Transfer buffer is made up as follows: 6.06 g Tris base 28.8 g Glycine Make up...
Transfer buffer is made up as follows: 6.06 g Tris base 28.8 g Glycine Make up volume to 1800 ml with distilled water. Add 200 ml Methanol. Question 1 Answer saved Marked out of 1.00 Flag question What is the concentration of Methanol in the Transfer Buffer? Select one: a. 20 mM b. 200 mM c. 20% d. 10% e. 200 ml/L f.9% g. 11.1% Question 2 Answer saved Flag question Marked out of 1.00 What is the final concentration...
4. When 10 g of benzene (Molar mass 78 g/mol) reacts with 9 mL of concentrated HNO3 (16 M) and 9 ...
4. When 10 g of benzene (Molar mass 78 g/mol) reacts with 9 mL of concentrated HNO3 (16 M) and 9 mL of H2SO4 (18 M), 8.1 g of nitrobenzene (molar mass 123 g/mol) and 1.2 g of an unknown compound with a high boiling point are obtained. a. Identify the limiting reagent. b. Calculate the percent yield of nitrobenzene. c. Give the name and structure of the most probable side product with the high melting point. d. Explain, with...
c) If Cylinder C contains a 40.0 % sucrose solution (40.0 g suger per 100 mL...
c) If Cylinder C contains a 40.0 % sucrose solution (40.0 g suger per 100 mL of solution), how much sucrose is present? d) A perfect cube with a side indicated by the line below has a mass of 1.30 g. It is dropped gently in cylinder B. Will it sink or float? [You have look at the density of the liquid in B to answer this question Show calculations! Side e) A rectangular box is 12.56 cm long, 16.20...
please answer Question 1 For the unity feedback system of figure 1.1, where Not yet answered K(s+3Xs+9) G(8) sts+6Xs...
please answer
Question 1 For the unity feedback system of figure 1.1, where Not yet answered K(s+3Xs+9) G(8) sts+6Xs+4Xs+2) Marked out of 3.00 find the value of K to yield a steady-state error of 0.4 for a ramp input of 23tu(t) P Flag question R(s) + E(s) C(s) G(s) Select one: a. K 76 b. K 28 C. K = 5625 d. K 273 e. K 102
Question 1 For the unity feedback system of figure 1.1, where Not yet...
Question 9 Not yet answered Given the following atomic weights, that the density of acetic acid is 1.05, and that 7.0 g of isoamyl alcohol, 7.4 mL of acetic acid, and 0.5 mL of sulfuric acid make 6.3 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures. C = 12, H = 1, 0 =16 Marked out of 1.00 P Flag question Answer:
this is a three part question, please.
Assume you performed the reaction in the above question using the amounts of reactants shown below and you obtained 1.14 g of reaction product. • 1-phenyl-1,2-propanedione (2.10 mL) • sodium borohydride (0.200 g) FOR THIS QUESTION, USE THE EXACT INFO BELOW IN YOUR CALCULATIONS OR YOU WILL OBTAIN A WRONG ANSWER AND NOT RECEIVE CREDIT atomic weights = C, 12.0; H, 1.01; 0, 16.0; Na, 23.0; B, 10.8; density of 1,2-phenyl-1,2-propanedione = 1.10...
QUESTION 9 The density of acetonitrile, C2H3N, is 0.786 g ml. mass of acetonitrile does this represent? Suppose 16.1 ml. of acetonitrile is added to a reaction vessel. What QUESTION 10 Suppose 62.9 ml. of dichloromethane, CH2Cl2, was added to a reaction vessel. Using the density of 1.3266 g ml", how many moles does this represent? QUESTION 11 Consider the following chemical reaction: 4HCI + MnO2 - MnCl2 + 2H2O + Cl2 When 0.494 mol of HCI reacts stoichiometrically with...
Use the following atomic weights & quantities to
calculate overall % yield of diphenylacetylene. Remember that your
yield must be based on the limiting reagent, and that grams must be
converted to moles. For problems not involving a one to one
stoichiometry ot may be easier to calculate the theoretical yield
in grams from both reagents to determine which is truly the
limiting reagent. Filling out most of the chart will help. Give
ONLY two significant digits in your answer....
S Ketone Aldehyde 9. Based upon the procedure given below, answer the following questions about the aldol condensation reaction: "In a clean 50 mL Erlenmeyer flask, add the ketone (0.5 g), aldehyde (2.0 mL), 95 % ethanol (10 mL) and 2 M aqueous sodium hydroxi de." Assume the aldehyde and ketone are the answers you provided in Question 8. a. Determine the limiting reagent for the above reaction. Only perform calculations on the organic reactants. Write out all calculations to...
just need answer, which letter.
TAL 1. (20pts) A student reacted 4.0 g of 2-hydroxybenzoic acid (C H6O3, MW 138 g/mol) with 4.0 mL of acetic anhydride (CH603, MW 102 g/mol) and 1 g of concentrated sulfuric acid.(MW 98) After workup, the student isolated 2.5 g of aspirin (MW 180). The density of acetic anhydride is 1.08 g/mL. (atomic weights: C. 12, H 1; 0, 16, S. 32) 1a. The limiting reagent is a) 2-hydroxybenzoic acid b) acetic anhydride c)...
Transfer buffer is made up as follows: 6.06 g Tris base 28.8 g Glycine Make up volume to 1800 ml with distilled water. Add 200 ml Methanol. Question 1 Answer saved Marked out of 1.00 Flag question What is the concentration of Methanol in the Transfer Buffer? Select one: a. 20 mM b. 200 mM c. 20% d. 10% e. 200 ml/L f.9% g. 11.1% Question 2 Answer saved Flag question Marked out of 1.00 What is the final concentration...
4. When 10 g of benzene (Molar mass 78 g/mol) reacts with 9 mL of concentrated HNO3 (16 M) and 9 mL of H2SO4 (18 M), 8.1 g of nitrobenzene (molar mass 123 g/mol) and 1.2 g of an unknown compound with a high boiling point are obtained. a. Identify the limiting reagent. b. Calculate the percent yield of nitrobenzene. c. Give the name and structure of the most probable side product with the high melting point. d. Explain, with...
c) If Cylinder C contains a 40.0 % sucrose solution (40.0 g suger per 100 mL of solution), how much sucrose is present? d) A perfect cube with a side indicated by the line below has a mass of 1.30 g. It is dropped gently in cylinder B. Will it sink or float? [You have look at the density of the liquid in B to answer this question Show calculations! Side e) A rectangular box is 12.56 cm long, 16.20...
please answer
Question 1 For the unity feedback system of figure 1.1, where Not yet answered K(s+3Xs+9) G(8) sts+6Xs+4Xs+2) Marked out of 3.00 find the value of K to yield a steady-state error of 0.4 for a ramp input of 23tu(t) P Flag question R(s) + E(s) C(s) G(s) Select one: a. K 76 b. K 28 C. K = 5625 d. K 273 e. K 102
Question 1 For the unity feedback system of figure 1.1, where Not yet...
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