A reduction reaction you will see later on is: NaBH4 +4H2O + 4(CH3)2CO -> B(OH3) +...
A reduction reaction you will see later on is:
NaBH4 +4H2O + 4(CH3)2CO -> B(OH3) + NaOH + 4C3H8O
You begin the reaction with 100 mg of acetone and want to use 1.3 equivalents of NaBH4. What mass of NaBH4 should you use?
Homework Answers
1.3 mol NaBH4 reacts with 4 mol acetone as per your requirement
100 mg = 0.1 g acetone; acetone molar mass = 58.08 g/mol
moles acetone = 0.1g / 58.08 g/mol = 0.00172176308 mol, so
moles NaBH4 required = 0.00172176308 x (1.3 / 4 ) = 0.000559573 mol
convert moles NaBH4 to mass NaBH4 by multiplying with it's molar mass
mass of NaBH4 = 0.000559573 mol x 37.83 g/mol = 0.02116864669 g = 21.1686466942 mg ~ 21.2 mg
mass of NaBH4 = 21.2 mg
Hope this helped you!
Thank You So Much! Please Rate this answer as you wish.("Thumbs Up")
Add Answer to:
A reduction reaction you will see later on is: NaBH4 +4H2O + 4(CH3)2CO -> B(OH3) +...
Below is a reaction you will carry out in Chem 242. If you start with 100...
Below is a reaction you will carry out in Chem 242. If you start with 100 mg of acetone, what mass of NaBH4 in mgdo you need? ОН - Mon) NaBH4 + 4 H20+4 B(OHz) + NaOH +4 To account for some of the NaBH4 decomposing, you plan to use 1.3 equivalents of it. Again assuming 100 mg of acetone, what mass of NaBH4 in mg do you need?
39. What is the major product obtained from the following reaction? Br CH3 (CH3)2CO (CH3)2COH Ol-Bu...
39. What is the major product obtained from the following reaction? Br CH3 (CH3)2CO (CH3)2COH Ol-Bu CH3 CH3 Ol-Bu CH3 CH3 11 III IV A) III B) I C II D IV 40. What must be the starting material of the following reaction? NaOH A B. ОН ОН a. Hori D. ia ОН ОН 41. Which reaction mechanisms are most likely to occur when (R)-2-iodohexane is heated with KOH in acetone? CH, H.C A) Snl and Sn2 B) E1 and...
Hello, can you please help me out with these problems. Thanks in advance. What reagents and...
Hello, can you please help me out with these problems. Thanks in
advance.
What reagents and conditions produce this transformation? 58. OH steps (A) 1. H2, Pd/C 3. NaOH, H2CO 4. NaBH4, CH3OH 5. Нзо", (CH3)2CO (B) 1. H2, Pd/C 2. NaBH4, CH OH 3. NaOH, Н.СО 4. pyridine-HCICrOs (PCC) 5. Нзо", (CH3)2CO (C) 1·Hao", (CH3)2CO 2. H Cros, H2S04, H2O 3. CH3MgBr 4. CHsCoH So2Cl (TsCl) 5. H2, Pd/C (D) 1. 1,3-butadiene, heat 2. H2, Pd/C 3. SOC12, pyridine...
2. Define the following: a. acid-base reaction b. displacement reaction c. oxidation-reduction reaction d. weak electrolyte...
2. Define the following: a. acid-base reaction b. displacement reaction c. oxidation-reduction reaction d. weak electrolyte 115 A Sequence of Chemical Reactions 3. PPPPPPPPPP Identify the following equations as single or double displacement, redox, acid-base, combination, or decompostion reactions. Some may fit in more than one category. a. Cu(s) + 4HNO, (aq) → Cu(NO),(aq) + 2NO, + 2H,0 Mg(s) + H.SO(aq) - MgSo. (aq) + H (6) CuO(s) + HCl(aq) → Cuci (aq) + H,000 d. Cu(NO),(aq) + 2NaOH(aq ->...
NaBH4(Sodium Borohydride) Reduction of Ketone (Organic Chemistry Lab) Questions 1. Explain the...
NaBH4(Sodium Borohydride) Reduction of Ketone (Organic
Chemistry Lab)
Questions
1.
Explain the reaction mechanism and why each reagent was used.
2. Explain the need for 2 different drying agents
3. Use
IR stretches and melting point determination to explain your
results.
4.
Report sources of error.
Experiment Procedure
Assemble the reaction apparatus as shown in Figure 14.2a,
consisting of a 3.0 mL conical vial charged with 4-t-
butylcyclohexanone (amount calculated in pre-lab) and methanol (100
μL). Attach the air condenser...
We performed a synthesis of methyl diantilis lab. The first step involved a Sodium Borohydride Reduction...
We performed a synthesis of methyl diantilis lab. The first step
involved a Sodium Borohydride Reduction of
3-Ethoxy-4-hydroxybenzaldehyde (Ethylvanillin) shown below.
The next step of the experiment involved Etherification of
3-ethoxy-4-hydroxylbenzyl Alcohol using one of four alcohols
(methanol, ethanol, 1-propanol, or 2-propanol). The alcohol I used
was methanol. The reaction is predicted below.
Below is the NMR sample for my product with the integration and
ppm for each peak displayed.
Based on this information, answer the following questions.
a. Check...
1. You should use NO MORE THAN 100 mL 0.25 M NH4OH, 4 g Ca(NO3)2·4H2O, and...
1. You should use NO MORE THAN 100 mL 0.25 M NH4OH, 4 g Ca(NO3)2·4H2O, and 3 g (NH4)2HPO4. NOTE: This is not a stoichiometric recipe. Part of the grading for this lab will be based on your ability to determine appropriate quantities of each reactant. Clearly show the actual amount of each reactant you intend to use. Determine the mass or volume of each reactant in the proper stoichiometric ratio, to synthesize and analyze a sample of calcium hydroxyapatite....
Thank you！ 1. What would be the major product B of the following reaction sequence? 1....
Thank you！
1. What would be the major product B of the following reaction sequence? 1. LIAIH NaOH A В 100°C 2. H2O ОН ОН но е. d. b. C. a. Он он ОН 2. What would be the major prod uct of the following reaction sequence? 1. Br2, NaOH CH3 HgSO4 2 Hао aq. H2SO Br .CH3 Br ОН b. HO. d. но e. C. a. 3. What major product would result from the following reaction? NaOH ? 3....
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive...
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
1. Saccharin is an artificial sweetener that was discovered in 1879 when a chemist spilled some...
1. Saccharin is an artificial sweetener that was discovered in 1879 when a chemist spilled some of his product on his sandwich, and when he ate his sandwich discovered it was particularly sweet. It is synthesized according to the following reaction and the product is isolated after addition of HCI. -NH₂ + NaOH + KMnO4 NH OS=0 a) What safety rule did our chemist violate when discovering saccharin? (1 pt) b) Redraw the structure of the carbon-containing starting material, explicitly...
Below is a reaction you will carry out in Chem 242. If you start with 100 mg of acetone, what mass of NaBH4 in mgdo you need? ОН - Mon) NaBH4 + 4 H20+4 B(OHz) + NaOH +4 To account for some of the NaBH4 decomposing, you plan to use 1.3 equivalents of it. Again assuming 100 mg of acetone, what mass of NaBH4 in mg do you need?
39. What is the major product obtained from the following reaction? Br CH3 (CH3)2CO (CH3)2COH Ol-Bu CH3 CH3 Ol-Bu CH3 CH3 11 III IV A) III B) I C II D IV 40. What must be the starting material of the following reaction? NaOH A B. ОН ОН a. Hori D. ia ОН ОН 41. Which reaction mechanisms are most likely to occur when (R)-2-iodohexane is heated with KOH in acetone? CH, H.C A) Snl and Sn2 B) E1 and...
Hello, can you please help me out with these problems. Thanks in
advance.
What reagents and conditions produce this transformation? 58. OH steps (A) 1. H2, Pd/C 3. NaOH, H2CO 4. NaBH4, CH3OH 5. Нзо", (CH3)2CO (B) 1. H2, Pd/C 2. NaBH4, CH OH 3. NaOH, Н.СО 4. pyridine-HCICrOs (PCC) 5. Нзо", (CH3)2CO (C) 1·Hao", (CH3)2CO 2. H Cros, H2S04, H2O 3. CH3MgBr 4. CHsCoH So2Cl (TsCl) 5. H2, Pd/C (D) 1. 1,3-butadiene, heat 2. H2, Pd/C 3. SOC12, pyridine...
2. Define the following: a. acid-base reaction b. displacement reaction c. oxidation-reduction reaction d. weak electrolyte 115 A Sequence of Chemical Reactions 3. PPPPPPPPPP Identify the following equations as single or double displacement, redox, acid-base, combination, or decompostion reactions. Some may fit in more than one category. a. Cu(s) + 4HNO, (aq) → Cu(NO),(aq) + 2NO, + 2H,0 Mg(s) + H.SO(aq) - MgSo. (aq) + H (6) CuO(s) + HCl(aq) → Cuci (aq) + H,000 d. Cu(NO),(aq) + 2NaOH(aq ->...
NaBH4(Sodium Borohydride) Reduction of Ketone (Organic
Chemistry Lab)
Questions
1.
Explain the reaction mechanism and why each reagent was used.
2. Explain the need for 2 different drying agents
3. Use
IR stretches and melting point determination to explain your
results.
4.
Report sources of error.
Experiment Procedure
Assemble the reaction apparatus as shown in Figure 14.2a,
consisting of a 3.0 mL conical vial charged with 4-t-
butylcyclohexanone (amount calculated in pre-lab) and methanol (100
μL). Attach the air condenser...
We performed a synthesis of methyl diantilis lab. The first step
involved a Sodium Borohydride Reduction of
3-Ethoxy-4-hydroxybenzaldehyde (Ethylvanillin) shown below.
The next step of the experiment involved Etherification of
3-ethoxy-4-hydroxylbenzyl Alcohol using one of four alcohols
(methanol, ethanol, 1-propanol, or 2-propanol). The alcohol I used
was methanol. The reaction is predicted below.
Below is the NMR sample for my product with the integration and
ppm for each peak displayed.
Based on this information, answer the following questions.
a. Check...
Thank you！
1. What would be the major product B of the following reaction sequence? 1. LIAIH NaOH A В 100°C 2. H2O ОН ОН но е. d. b. C. a. Он он ОН 2. What would be the major prod uct of the following reaction sequence? 1. Br2, NaOH CH3 HgSO4 2 Hао aq. H2SO Br .CH3 Br ОН b. HO. d. но e. C. a. 3. What major product would result from the following reaction? NaOH ? 3....
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
1. Saccharin is an artificial sweetener that was discovered in 1879 when a chemist spilled some of his product on his sandwich, and when he ate his sandwich discovered it was particularly sweet. It is synthesized according to the following reaction and the product is isolated after addition of HCI. -NH₂ + NaOH + KMnO4 NH OS=0 a) What safety rule did our chemist violate when discovering saccharin? (1 pt) b) Redraw the structure of the carbon-containing starting material, explicitly...
Most questions answered within 3 hours.
-
Oxidative phosphorylation is achieved through chemiosmotic
coupling, which turns chemical energy into osmotic potential energy
that...
asked 1 hour ago -
Hollywood Shoes would like to maintain their cash account at a
minimum level of $64,000, but...
asked 1 hour ago -
Proteins CtrA-P, DnaA, and GcrA behave similarly to what
molecule in the Eukaryotic Cell Cycle?
asked 1 hour ago -
TRUE OR FALSE
In case of a competitive tender procedure, in the request for
quotation, the...
asked 1 hour ago -
I am a little behind please provide some explanation, will
provide thumbs up.
This question considers...
asked 1 hour ago -
Let say the utility function as U(X,Y) = lnX + Y. Show that the
marginal rate...
asked 2 hours ago -
A current of I=8.0A is flowing in a typical extension cord of
length L=3.00m. The cord...
asked 2 hours ago -
1. When balancing the equation H2SO4 (aq) + NaOH (aq) →
Na2SO4(aq) + H2O(aq), would you...
asked 2 hours ago -
Provide a definition of “classification hierarchy” and
illustrate your definition with an example of how and...
asked 2 hours ago -
1. Describe the four main green solvents. Provide one example of
the use of each solvent....
asked 2 hours ago -
International ethics focus on:
1) exploitation of labor
2)corruption
3) environmental impact
4) none of the...
asked 2 hours ago -
Costing Models You work for XYZ trucking and your boss has asked
you to figure out...
asked 2 hours ago