If you experience a painful bee sting, there is formic acid at work. which type of organic compound is responsible for your suff
ering?
2 answers:
Answer: Carboxylic acid
Explanation: Bee stings are basically venomous in nature and they do create excruciating pain because they contain Formic acid which belongs to the carboxylic acid group.
Formic acid has a pKa of 3.5 approximately. Thus it is moderately acidic in nature . That is why it is recommended to treat it with some kind of alkali like Baking soda or toothpaste etc.
The structure of the formic acid is displayed in the image attached.
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Answer:
pH ≅ 4.80
Explanation:
Given that:
the volume of HN₃ = 25 mL = 0.025 L
Molarity of HN₃ = 0.150 M
number of moles of HN₃ = 0.025 × 0.150
number of moles of HN₃ = 0.00375 mol
Molarity of NaOH = 0.150 M
the volume of NaOH = 13.3 mL = 0.0133
number of moles of NaOH = 0.0133× 0.150
number of moles of NaOH = 0.001995 mol
The chemical equation for the reaction of this process can be written as:
1 mole of hydrazoic acid react with 1 mole of hydroxide to give nitride ion and water
thus the new number of moles of HN₃ = 0.00375 - 0.001995 = 0.001755 mol
Total volume used in the reaction = 0.025 + 0.0133 = 0.0383 L
Concentration of =
= 0.0458 M
Concentration of =
= 0.0521 M
GIven that :
Ka =
Thus; it's pKa = 4.72
pH ≅ 4.80