Organic Sample with Hydrochloric Acid and Sodium Hydroxide

In summary, the conversation discusses the solubility of various organic compounds, including NaHCO3, amyl acetate, benzoic acid, phenol, and ethylamine. The discussion also mentions the role of HCl and NaOH in testing the solubility of these compounds. The X symbol represents insolubility. The conversation concludes by mentioning the increase in ionic character and partition coefficient when the organic sample can be protonated or deprotonated.
  • #1
dustpops
3
0
I am confused with how these reaction occurs. I don't know the
polarity of compunds like NaHCO3, Amyl acetate, Benzoic Acid, Phenol, and EthylamineOrganic Sample with 1M HC with 1M NaOH with NaHCO3
Amyl acetate insoluble insoluble X
Cyclohexane insoluble insoluble X
Ethylamine miscible miscible X
Ethanol soluble soluble X
Benzoic Acid(solid) insoluble soluble soluble(effervescence)
Phenol immiscible miscible insoluble(no bubbles)

why is it the organic sample reacted with the HCl and NaOH and NaHCO3 in that
manner?
 
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  • #2
What's the distinction here between soluble and miscible ; are they both homogenous? What's with the "X"? My guess is that the organic sample is not acidic or basic since their is no change in dissolution in solvents with no significant acidic or basic groups.
 
  • #3
The Organic samples listed are observed if there are any reactions with HCl, NaOH and NaHCO3
 
  • #4
Describe the scope of this experiment e.g. procedures.
 
  • #5
test the solubility of each compound by adding 1ml of 1M HCl. Repeat using 1ml of 1M HCl.

test amyl acetate with 1M HCl and 1M NaOH
test cyclohexane with 1M HCl and 1M NaOH
test ethylamine with 1M HCl and 1M NaOH
test trimethyl amine with 1M HCl and 1M NaOH
test ethanol with 1M HCl and 1M NaOH
test bezoic acid with 1M HCl and 1M NaOH and NaHCO3
test phenol with 1M HCl and 1M NaOH and NaHCO3
 
  • #6
Well in general if the organic sample can be protonated or deprotonated this increases the ionic character and thus the partition coefficient in favor of water.
 

Related to Organic Sample with Hydrochloric Acid and Sodium Hydroxide

1. What is the purpose of using hydrochloric acid and sodium hydroxide in an organic sample?

The purpose of using hydrochloric acid and sodium hydroxide in an organic sample is to determine the presence of certain functional groups, such as carboxylic acids and amines. This process is known as acid-base titration and is commonly used in organic chemistry to identify and quantify these functional groups in a sample.

2. How do hydrochloric acid and sodium hydroxide react with organic compounds?

Hydrochloric acid is a strong acid that donates a proton (H+) to a basic functional group, such as an amine, to form a salt. Sodium hydroxide, on the other hand, is a strong base that accepts a proton from an acidic functional group, such as a carboxylic acid, to form a salt. These reactions are known as acid-base neutralization reactions and are key to determining the presence of functional groups in an organic sample.

3. Can hydrochloric acid and sodium hydroxide react with any organic compound?

Yes, hydrochloric acid and sodium hydroxide can react with any organic compound that contains functional groups that are either acidic or basic in nature. This includes compounds such as alcohols, aldehydes, ketones, and more. However, the reaction will only occur if the functional group is present in the sample and is able to react with the acid or base.

4. Are there any safety precautions to take when using hydrochloric acid and sodium hydroxide with organic samples?

Yes, both hydrochloric acid and sodium hydroxide are corrosive and can cause irritation and burns to the skin and eyes. It is important to wear protective gear, such as gloves and goggles, when handling these chemicals. It is also important to work in a well-ventilated area and to properly dispose of any leftover chemicals after use.

5. How do you determine the endpoint of an acid-base titration with hydrochloric acid and sodium hydroxide?

The endpoint of an acid-base titration is determined by using an indicator, such as phenolphthalein or methyl orange, which changes color when the reaction is complete. When the indicator changes color, it indicates that all of the acid or base has been neutralized, and the endpoint of the titration has been reached. This allows for the calculation of the concentration of the acid or base in the sample.

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