Answer:
pH = 9,32
Explanation:
The compound with 2 ionizable groups has the following equilibriums:
H₂M ⇄ HM⁻ + H⁺ pka = 6,2
HM⁻ ⇄ M²⁻ + H⁺ pka = 9,5
The reaction of M²⁻ with HCl is:
M²⁻ + HCl → HM⁻ + Cl⁻
The moles of M²⁻ are:
0,100L×1,0M = 0,1moles
And moles of HCl are:
0,060L×1,0M = 0,06moles
That means that moles of M²⁻ will be 0,1-0,06 = 0,04mol and moles of HM⁻ will be the same than HCl, 0,06mol
Using Henderson-Hasselbalch formula:
pH = pka + log₁₀ [M²⁻] / [HM⁻]
Replacing:
pH = 9,5 + log₁₀ [0,04] / [0,06]
<em>pH = 9,32</em>
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I hope it helps!
Im guessing here but i think it's true
The reason why 1-hydroxy-2-methyl-5-isopropylbenzene is not the correct systematic name for carvacrol is because the substituents are not listed alphabetically.
IUPAC nomenclature provides the correct and acceptable system of naming organic compounds which are internationally acceptable among scientists.
According to the rules of IUPAC nomenclature, compounds are named in alphabetical order. The names of the locants are ordered in such a way that they have the lowest number. Following IUPAC nomenclature, the correct name of the compound ought to be, 1-hydroxy-5-isopropyl-2-methylbenzene.
Learn more: brainly.com/question/11587934
Based on the properties of ideal gases, the true statements are:
- They have a small mass.
- They have no volume.
- They have no intermolecular forces.
<h3>What is an ideal gas?</h3>
An ideal gas is a gas which is assumed to have ideal properties.
The properties of an ideal gas are as follows:
- they have negligible mass
- do not attract or repel one another due to negligible intermolecular forces
- take up no space (have no constant volume)
- they collide with one another and the walls of their container
Therefore, based on the properties of ideal gases, the true statements are:
- They have a small mass.
- They have no volume.
- They have no intermolecular forces.
Learn more about ideal gases at: brainly.com/question/25290815