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O 5. For a mixture of salicylic acid, 1, naphthol, 2, and naphthalene, 3, Which of...
1.Concept Review 1. This structure depicts bonds and non-bonding electrons, but not charges. What charge should...
1.Concept Review 1. This structure depicts bonds and non-bonding electrons, but not charges. What charge should be indicated? A) + on G B ) + on C C) +ono D) - on C 2. Which of the numbered nitrogens would be the LEAST basic? A) 1 B) 2 C)3 D) 4 9 . 3. Which of these structures is the major form of alanine at pH = 7.42 CH HNN che ich mit ihan os al or no 4. Which...
5. The same procedure used in this lab can also be used to separate a 3-component mixture of benz...
Referring to liquid-liquid separation
5. The same procedure used in this lab can also be used to separate a 3-component mixture of benzoic acid, 2-naphthol and naphthalene. Predict the contents of the flasks 1-3 in the following situations (for flasks 1 and 2 after acidification with HCI). [3 points per part 9 points] a) The procedure was performed correctly. b) A student accidentally used 5% NaOH (aq) for the first set of extractions (flask 1) instead of 10% NaHCO3(aq). He...
Construct a flow chart that follows the separation of a mixture of 2-nitrophenol (an organic acid...
Construct a flow chart that follows the separation of a mixture
of 2-nitrophenol (an organic acid not used in this experiment with
a pKa = 7.26) and anthracene (neutral organic). Use scheme 1 as a
template. Your reagents available are the same ones used in this
lab.
Scheme 1. The acid-base extraction of p-creol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). OH 1. dissolve in TBME 2. Add NaOH/H,0 ON less dense TBME Layer Remove bottom laver Place...
Naphthol was used in place of naphthalene. The product that resulted was 2-nitro-1-naphtol which was determined...
Naphthol was used in place of naphthalene. The product
that resulted was 2-nitro-1-naphtol which was determined by
comparing the melting points. I'm unsure of the mechanism for the
reaction with the flow of electrons
Measure 2.0 ml, of the mixed acid (1:l sulfuric acid and nite a small test tube or a conical vial. In small pottions, add divided naphthalene to the mixed acid, stirring or shaking each addition and cooling [OP-8] as nece around 45-S0°C. Then stit or shake...
Construct a flow chart that follows the separation of a mixture of 2-nitrophenol (an organic acid...
Construct a flow chart that follows the separation of a
mixture of 2-nitrophenol (an organic acid not used in this
experiment with a pKa = 7.26) and anthracene (neutral organic). Use
scheme 1 as a template. Your reagents available are the same ones
used in this lab.
Scheme 1 is shown below!
Scheme 1. The acid-base extraction of p-cresol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). O 1. dissolve in TBME 2. Add NaOH/H, less dense TBME layer...
Acids & Base Worksheet 14a (Intro) EXERCISES 1. Label each of the following as Arrhenius acid....
Acids & Base Worksheet 14a (Intro) EXERCISES 1. Label each of the following as Arrhenius acid. Arrhenius base, salt, or molecular compound. a. HCI c. H2O b. NaOH f. CCM c. HC2H302 g. Mg(OH)2 d. MgCl2 2. Which of the following could be considered Bransted bases. a. NH3 d. CH-CH:COOH b. NaOH e. CH c. CH4 f. CH3NH2 3. The hydrogen ion, H, is often referred to as a proton. Why is this?
2. A solution containing a mixture of naphthalene, benzoic acid, and benzaldehyde is analyzed via TLC...
2. A solution containing a mixture of naphthalene, benzoic acid, and benzaldehyde is analyzed via TLC and GC. Use the structures and properties of the compounds to aid in answering the following questions. A. In the TLC experiment, the mixture is spotted on a silica TLC plate and eluted with a 1:1 mixture of hexanes and ethyl acetate. Three spots are observed on the plate, with Re values of 0.25, 0.58, and 0.74. Indicate which spot corresponds to which compound....
A mixture containing 1, 3, 5-trimcthoxybcnzcnc (A), phenol (B), aniline (C) and 1-naphthoic acid (D) was...
A mixture containing 1, 3, 5-trimcthoxybcnzcnc (A), phenol (B), aniline (C) and 1-naphthoic acid (D) was dissolved in dichloromethane. Next two extractions were performed first using HC1 then with NaOH. Which of the compounds could not be separated in this procedure. Explain and show the pertinent reaction equation/s. student wanted to separate a mixture of benzoic acid and aniline that were dissolved in ethanol. Could the student separate the two compounds using a base extraction (NaOH)? Explain
(d) Conjugate acid: OH"; conjugate base: H3* (e) None of these 5. Identify the conjugate acid/base...
(d) Conjugate acid: OH"; conjugate base: H3* (e) None of these 5. Identify the conjugate acid/base pairs in the following equation (10) HASO4 + H2O <H2AsO4 + OH (A). HASO. (acid)HAsO4 (base): H2O (acid)/ OH (base) (B). HASO4 (acid)/HASO. (base): H2O (acid)/ OH (base) (C). H2AsO4 (acid)/ OH (base) ; H2O (acid)/HASO4 (base) (D). H AsO4 and H20 (acids): OH and HASO4(bases) (E). None of these 6. Which is an INCORRECT statement?(10) a) The conjugate base of H2O is OH....
Which reaction is an example of an acid-base reaction? O FeCl3 (aq) + 3 KOH(aq) -...
Which reaction is an example of an acid-base reaction? O FeCl3 (aq) + 3 KOH(aq) - Fe(OH)3 (s) + 3 KCl(aq) O 2 Hg(1) + O2(g) -2 HgO(s) O 6 HCl(aq) + 2 Al(s) -> 2 AlCl3 (aq) + 3 H2 (g) O H2SO4 (aq) + Ca(OH)2 (aq) - CaSO4 (aq) + 2 H2O(l) H2CO3 (aq) - H2O(l) + CO2 (g)
1.Concept Review 1. This structure depicts bonds and non-bonding electrons, but not charges. What charge should be indicated? A) + on G B ) + on C C) +ono D) - on C 2. Which of the numbered nitrogens would be the LEAST basic? A) 1 B) 2 C)3 D) 4 9 . 3. Which of these structures is the major form of alanine at pH = 7.42 CH HNN che ich mit ihan os al or no 4. Which...
Referring to liquid-liquid separation
5. The same procedure used in this lab can also be used to separate a 3-component mixture of benzoic acid, 2-naphthol and naphthalene. Predict the contents of the flasks 1-3 in the following situations (for flasks 1 and 2 after acidification with HCI). [3 points per part 9 points] a) The procedure was performed correctly. b) A student accidentally used 5% NaOH (aq) for the first set of extractions (flask 1) instead of 10% NaHCO3(aq). He...
Construct a flow chart that follows the separation of a mixture
of 2-nitrophenol (an organic acid not used in this experiment with
a pKa = 7.26) and anthracene (neutral organic). Use scheme 1 as a
template. Your reagents available are the same ones used in this
lab.
Scheme 1. The acid-base extraction of p-creol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). OH 1. dissolve in TBME 2. Add NaOH/H,0 ON less dense TBME Layer Remove bottom laver Place...
Naphthol was used in place of naphthalene. The product
that resulted was 2-nitro-1-naphtol which was determined by
comparing the melting points. I'm unsure of the mechanism for the
reaction with the flow of electrons
Measure 2.0 ml, of the mixed acid (1:l sulfuric acid and nite a small test tube or a conical vial. In small pottions, add divided naphthalene to the mixed acid, stirring or shaking each addition and cooling [OP-8] as nece around 45-S0°C. Then stit or shake...
Construct a flow chart that follows the separation of a
mixture of 2-nitrophenol (an organic acid not used in this
experiment with a pKa = 7.26) and anthracene (neutral organic). Use
scheme 1 as a template. Your reagents available are the same ones
used in this lab.
Scheme 1 is shown below!
Scheme 1. The acid-base extraction of p-cresol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). O 1. dissolve in TBME 2. Add NaOH/H, less dense TBME layer...
Acids & Base Worksheet 14a (Intro) EXERCISES 1. Label each of the following as Arrhenius acid. Arrhenius base, salt, or molecular compound. a. HCI c. H2O b. NaOH f. CCM c. HC2H302 g. Mg(OH)2 d. MgCl2 2. Which of the following could be considered Bransted bases. a. NH3 d. CH-CH:COOH b. NaOH e. CH c. CH4 f. CH3NH2 3. The hydrogen ion, H, is often referred to as a proton. Why is this?
2. A solution containing a mixture of naphthalene, benzoic acid, and benzaldehyde is analyzed via TLC and GC. Use the structures and properties of the compounds to aid in answering the following questions. A. In the TLC experiment, the mixture is spotted on a silica TLC plate and eluted with a 1:1 mixture of hexanes and ethyl acetate. Three spots are observed on the plate, with Re values of 0.25, 0.58, and 0.74. Indicate which spot corresponds to which compound....
A mixture containing 1, 3, 5-trimcthoxybcnzcnc (A), phenol (B), aniline (C) and 1-naphthoic acid (D) was dissolved in dichloromethane. Next two extractions were performed first using HC1 then with NaOH. Which of the compounds could not be separated in this procedure. Explain and show the pertinent reaction equation/s. student wanted to separate a mixture of benzoic acid and aniline that were dissolved in ethanol. Could the student separate the two compounds using a base extraction (NaOH)? Explain
(d) Conjugate acid: OH"; conjugate base: H3* (e) None of these 5. Identify the conjugate acid/base pairs in the following equation (10) HASO4 + H2O <H2AsO4 + OH (A). HASO. (acid)HAsO4 (base): H2O (acid)/ OH (base) (B). HASO4 (acid)/HASO. (base): H2O (acid)/ OH (base) (C). H2AsO4 (acid)/ OH (base) ; H2O (acid)/HASO4 (base) (D). H AsO4 and H20 (acids): OH and HASO4(bases) (E). None of these 6. Which is an INCORRECT statement?(10) a) The conjugate base of H2O is OH....
Which reaction is an example of an acid-base reaction? O FeCl3 (aq) + 3 KOH(aq) - Fe(OH)3 (s) + 3 KCl(aq) O 2 Hg(1) + O2(g) -2 HgO(s) O 6 HCl(aq) + 2 Al(s) -> 2 AlCl3 (aq) + 3 H2 (g) O H2SO4 (aq) + Ca(OH)2 (aq) - CaSO4 (aq) + 2 H2O(l) H2CO3 (aq) - H2O(l) + CO2 (g)
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