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why
is it crucial to ensure that the reaction is neutralized when
synthesizing sulfanilamide from para-acetamidobenzenesulfonyl...
The mechanism involves donation of a hydride from ethanol to reduce the diazonium salt as shown...
The mechanism involves donation of a hydride from ethanol to reduce the diazonium salt as shown here. After the first reaction (Step 1), each subsequent reaction uses the product of the previous step. The amounts of all reagents used, including solvents, must be sealed according to the amount of product obtained in the previous step (after saving at least 25 mg of the product for characterization and spectral analysis in each step). Prelab Assignment Calculate the theoretical mass of 1-bromo-3-chloro-5-iodobenzcnc...
11. The TLC shown below was taken in step 4 of the procedure for reaction 3:...
11. The TLC shown below was taken in step 4 of the procedure for reaction 3: . . . SM=0,m,p-methylaniline Co= Co-Spot RM= Reaction Mixture - . : SM CO RM a) Which spot is likely the para isomer of methylaniline? How could you tell? (2 points) b) Which spot is likely the acetylated para product (p-methylacetanilide)? How can you tell? (2 points) c) Keeping in mind we are only trying to acetylate the para isomer of methylaniline, is the...
a) Which products (shown above) from reaction 3 can react with HCl in an acid-base reaction?...
a) Which products (shown above) from reaction 3 can react with
HCl in an acid-base reaction? Show the mechanism for this acid-base
reaction and give the structures that would result from the
protonation of these products. Which phase (organic or aqueous)
would these protonated products be soluble in?
b) Which phase (organic or aqueous) would the
p-methylacetanilide be found in?
c) Why did we have to use hot ethanol for the
recrystallization?
d) Why did we have to cool the...
NAME: 1. Which net ionic equation best represents the reaction that occurs when an aqueous solution of barium chlor...
NAME: 1. Which net ionic equation best represents the reaction that occurs when an aqueous solution of barium chloride is mixed with an aqueous solution of lithium sulfate? a. 2H'(ag)+2C(aq)2HC(g) b. Ba (ag)+ SO (aq)- BaSO (s) c. Ba(aq)+ 2Cl (ag)+ 2Li'(ag)+ SO (ag) BaSO4(s)+2LIC((ag) d. BaCl(ag)+ LiSO4(ag) BaSO (s)+ 2LICI(ag) e. No net reaction occurs. 2. What products result from mixing aqueous solutions of Ni(C;H3O2)2(aq) and K3PO (aq)? a. Ni PO(s) and Ka(C2H,O2)2 (aq) b. Nis(PO):(s) and KC2H,O:(s) c....
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
V. Heat of reaction for NaOH (s) + HCI (aq) → Naci (aq) + H20 ()-dH(net) Direct determination Mas...
need help with calculations
V. Heat of reaction for NaOH (s) + HCI (aq) → Naci (aq) + H20 ()-dH(net) Direct determination Mass NaOH Moles NaOH = moles Mass of HCI solution Final temp. of solution Initial temp. of solution AT solution 30 23 C 4 C AH(net)(Direct) per mole NaOH Calculation Indirect determination Heat of dissolution of NaOH (s) [AH(diss)] Mass NaOH Moles NaOH moles Mass of water Final temp. of solution Initial temp. of solution AT solution AH(diss)-...
When setting up the reflux condenser, does it matter if the water flows into the bottom...
When setting up the reflux condenser, does it matter if the
water flows into the bottom or the top of the condenser? If so,
does it have to flow into the bottom or the top, and why? If not,
why does it not matter?
Reaction 2: Reduction NO2 NH4HCO2 NH2 + NO2 Pd/C NO2 NH2 NH2 m-methylaniline p-methylaniline 0-methylaniline ortho meta para Procedure for Reaction 2: 1) The mixture of ortho, meta, and para isomers obtained from reaction 1 (2.4...
a) When setting up the reflux condenser, does it matter if the water flows into the...
a) When setting up the reflux condenser, does it matter
if the water flows into the bottom or the top of the condenser? If
so, does it have to flow into the bottom or the top, and why? If
not, why does it not matter?
Question pertains to the following reactions:
Reaction 2: Reduction NO2 NH4HCO2 NH2 + NO2 Pd/C NO2 NH2 NH2 m-methylaniline p-methylaniline 0-methylaniline ortho meta para Procedure for Reaction 2: 1) The mixture of ortho, meta, and...
41. Which reaction can be predicted from the activity series? a. 2H2O(aq) + 2Na(s) 2NaOH(aq) +...
41. Which reaction can be predicted from the activity series? a. 2H2O(aq) + 2Na(s) 2NaOH(aq) + H2(g) b. 2Cl(g) Cl:(8) c. Cl:(g) + 2Cl(g) d. HCl(aq) + NaOH(aq) NaCl(aq) + H2O(1) 42. According to the law of conservation of mass, the total mass of the reacting substances is a. always more than the total mass of the products. b. sometimes more and sometimes less than the total mass of the products. c. always less than the total mass of the...
IV. Heat of reaction of a weak acid with weak base Total mass of solution Final temp. of solution...
need help
IV. Heat of reaction of a weak acid with weak base Total mass of solution Final temp. of solution Initial temp. of solutions AT Water AH reaction 40 9 29 C 22"C Calculation: Heat of reaction per mole water formed Moles of water formed AH reaction per mole H,O formed Calculation Heat of dissociation of weak acid and weak base AH dissociation (per mole)- Calculation: [AH Dissociation- AH reaction -AH Neutralization (from II)] IV. Enthalpy of Neutralization of...
The mechanism involves donation of a hydride from ethanol to reduce the diazonium salt as shown here. After the first reaction (Step 1), each subsequent reaction uses the product of the previous step. The amounts of all reagents used, including solvents, must be sealed according to the amount of product obtained in the previous step (after saving at least 25 mg of the product for characterization and spectral analysis in each step). Prelab Assignment Calculate the theoretical mass of 1-bromo-3-chloro-5-iodobenzcnc...
11. The TLC shown below was taken in step 4 of the procedure for reaction 3: . . . SM=0,m,p-methylaniline Co= Co-Spot RM= Reaction Mixture - . : SM CO RM a) Which spot is likely the para isomer of methylaniline? How could you tell? (2 points) b) Which spot is likely the acetylated para product (p-methylacetanilide)? How can you tell? (2 points) c) Keeping in mind we are only trying to acetylate the para isomer of methylaniline, is the...
a) Which products (shown above) from reaction 3 can react with
HCl in an acid-base reaction? Show the mechanism for this acid-base
reaction and give the structures that would result from the
protonation of these products. Which phase (organic or aqueous)
would these protonated products be soluble in?
b) Which phase (organic or aqueous) would the
p-methylacetanilide be found in?
c) Why did we have to use hot ethanol for the
recrystallization?
d) Why did we have to cool the...
NAME: 1. Which net ionic equation best represents the reaction that occurs when an aqueous solution of barium chloride is mixed with an aqueous solution of lithium sulfate? a. 2H'(ag)+2C(aq)2HC(g) b. Ba (ag)+ SO (aq)- BaSO (s) c. Ba(aq)+ 2Cl (ag)+ 2Li'(ag)+ SO (ag) BaSO4(s)+2LIC((ag) d. BaCl(ag)+ LiSO4(ag) BaSO (s)+ 2LICI(ag) e. No net reaction occurs. 2. What products result from mixing aqueous solutions of Ni(C;H3O2)2(aq) and K3PO (aq)? a. Ni PO(s) and Ka(C2H,O2)2 (aq) b. Nis(PO):(s) and KC2H,O:(s) c....
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
need help with calculations
V. Heat of reaction for NaOH (s) + HCI (aq) → Naci (aq) + H20 ()-dH(net) Direct determination Mass NaOH Moles NaOH = moles Mass of HCI solution Final temp. of solution Initial temp. of solution AT solution 30 23 C 4 C AH(net)(Direct) per mole NaOH Calculation Indirect determination Heat of dissolution of NaOH (s) [AH(diss)] Mass NaOH Moles NaOH moles Mass of water Final temp. of solution Initial temp. of solution AT solution AH(diss)-...
When setting up the reflux condenser, does it matter if the
water flows into the bottom or the top of the condenser? If so,
does it have to flow into the bottom or the top, and why? If not,
why does it not matter?
Reaction 2: Reduction NO2 NH4HCO2 NH2 + NO2 Pd/C NO2 NH2 NH2 m-methylaniline p-methylaniline 0-methylaniline ortho meta para Procedure for Reaction 2: 1) The mixture of ortho, meta, and para isomers obtained from reaction 1 (2.4...
a) When setting up the reflux condenser, does it matter
if the water flows into the bottom or the top of the condenser? If
so, does it have to flow into the bottom or the top, and why? If
not, why does it not matter?
Question pertains to the following reactions:
Reaction 2: Reduction NO2 NH4HCO2 NH2 + NO2 Pd/C NO2 NH2 NH2 m-methylaniline p-methylaniline 0-methylaniline ortho meta para Procedure for Reaction 2: 1) The mixture of ortho, meta, and...
41. Which reaction can be predicted from the activity series? a. 2H2O(aq) + 2Na(s) 2NaOH(aq) + H2(g) b. 2Cl(g) Cl:(8) c. Cl:(g) + 2Cl(g) d. HCl(aq) + NaOH(aq) NaCl(aq) + H2O(1) 42. According to the law of conservation of mass, the total mass of the reacting substances is a. always more than the total mass of the products. b. sometimes more and sometimes less than the total mass of the products. c. always less than the total mass of the...
need help
IV. Heat of reaction of a weak acid with weak base Total mass of solution Final temp. of solution Initial temp. of solutions AT Water AH reaction 40 9 29 C 22"C Calculation: Heat of reaction per mole water formed Moles of water formed AH reaction per mole H,O formed Calculation Heat of dissociation of weak acid and weak base AH dissociation (per mole)- Calculation: [AH Dissociation- AH reaction -AH Neutralization (from II)] IV. Enthalpy of Neutralization of...
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