The mass percent of benzoic acid when 0.3471 g a sample of a mixture of oxalic acid, and benzoic acid is treated with 100.0 mL of 0.1000 M NaOH and the excess NaOH is titrated with 20.00 mL of 0.2000 M HCl is to be calculated. Concept introduction: Strong acids and strong bases are the substance that dissociates completely into its ions when dissolved in the solution. They dissociate completely in water to release H + ions and OH − ions. Weak acids and weak bases are the substance that does not dissociate completely into its ions when dissolved in the solution. They dissociate partially in water to release H + ions and OH − ions. Benzoic acid ( HC 7 H 5 O 2 ) , oxalic acid ( H 2 C 2 O 4 ) , and hydrochloric acid ( HCl ) are an acid and sodium hydroxide ( NaOH ) is a strong base. Sodium hydroxide ( NaOH ) and hydrochloric acid ( HCl ) both dissociate completely into their ions. Benzoic acid ( HC 7 H 5 O 2 ) and oxalic acid ( H 2 C 2 O 4 ) do not dissociate completely into their ions The molecular equation for the acid-base reaction is: HCl ( a q ) + NaOH ( a q ) → NaCl ( a q ) + H 2 O ( l ) 2 NaOH ( a q ) + H 2 C 2 O 4 ( a q ) → Na 2 C 2 O 4 ( a q ) + 2 H 2 O ( l ) NaOH ( a q ) + HC 7 H 5 O 2 ( a q ) → NaC 7 H 5 O 2 ( a q ) + H 2 O ( l )
The mass percent of benzoic acid when 0.3471 g a sample of a mixture of oxalic acid, and benzoic acid is treated with 100.0 mL of 0.1000 M NaOH and the excess NaOH is titrated with 20.00 mL of 0.2000 M HCl is to be calculated. Concept introduction: Strong acids and strong bases are the substance that dissociates completely into its ions when dissolved in the solution. They dissociate completely in water to release H + ions and OH − ions. Weak acids and weak bases are the substance that does not dissociate completely into its ions when dissolved in the solution. They dissociate partially in water to release H + ions and OH − ions. Benzoic acid ( HC 7 H 5 O 2 ) , oxalic acid ( H 2 C 2 O 4 ) , and hydrochloric acid ( HCl ) are an acid and sodium hydroxide ( NaOH ) is a strong base. Sodium hydroxide ( NaOH ) and hydrochloric acid ( HCl ) both dissociate completely into their ions. Benzoic acid ( HC 7 H 5 O 2 ) and oxalic acid ( H 2 C 2 O 4 ) do not dissociate completely into their ions The molecular equation for the acid-base reaction is: HCl ( a q ) + NaOH ( a q ) → NaCl ( a q ) + H 2 O ( l ) 2 NaOH ( a q ) + H 2 C 2 O 4 ( a q ) → Na 2 C 2 O 4 ( a q ) + 2 H 2 O ( l ) NaOH ( a q ) + HC 7 H 5 O 2 ( a q ) → NaC 7 H 5 O 2 ( a q ) + H 2 O ( l )
The mass percent of benzoic acid when 0.3471g a sample of a mixture of oxalic acid, and benzoic acid is treated with 100.0 mL of 0.1000M NaOH and the excess NaOH is titrated with 20.00 mL of 0.2000M HCl is to be calculated.
Concept introduction:
Strong acids and strong bases are the substance that dissociates completely into its ions when dissolved in the solution. They dissociate completely in water to release H+ ions and OH− ions.
Weak acids and weak bases are the substance that does not dissociate completely into its ions when dissolved in the solution. They dissociate partially in water to release H+ ions and OH− ions.
Benzoic acid (HC7H5O2), oxalic acid (H2C2O4), and hydrochloric acid (HCl) are an acid and sodium hydroxide (NaOH) is a strong base.
Sodium hydroxide (NaOH) and hydrochloric acid (HCl) both dissociate completely into their ions. Benzoic acid (HC7H5O2) and oxalic acid (H2C2O4) do not dissociate completely into their ions
The molecular equation for the acid-base reaction is:
At an electrified interface according to the Gouy-Chapman model, what types of interactions do NOT occur between the ions and the solvent according to this theory?
Please predict the products for each of the
following reactions.
Clearly show the regiochemistry (Markovnikov
vs anti-Markovnikov) and stereochemistry
(syn- vs anti- or both).
If a mixture of enantiomers is formed, please
draw all the enantiomers.
Hint: In this case you must choose the best
answer to demonstrate the stereochemistry of
H2 addition.
1.03
2. (CH3)2S
BIZ
CH₂OH
2. DMS
KMnO4, NaOH
ΖΗ
Pd or Pt (catalyst)
HBr
20 1
HBr
ROOR (peroxide)
HO
H-SO
HC
12 11 10
BH, THE
2. H2O2, NaOH
Brz
cold
HI
19
18
17
16
MCPBA
15
14
13
A
Br
H₂O
BH3⚫THF
Brz
EtOH
Pd or Ni (catalyst)
D₂ (deuterium)
1. Os04
2. H2O2
CH3CO3H
(peroxyacid)
1. MCPBA
2. H₂O*
H
B
+
H
H
H
"H
C
H
H
D
Explain how Beer’s Law can be used to determine the concentration in a selected food sample. Provide examples.
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