Answer:
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Answer:
pka = -logKa
Explanation:
pKa is defined as negative logarithm of dissociation constant, Ka.
Or, pka = -logKa
pKa define strength of an acid.
Higher pKa indicates lower strength of the acid or low dissociation of the acid.
Whereas lower pKa indicates higher strength of the acid or high dissociation of the acid.
pKa is also related with pH of the solution.
Higher the pKa, higher is the pH of the solution. This can be understood as:
Higher pKa means lower dissociation dissociation or low concentration of H+. Low H+ means high pH.
Relation between pKa and pH is given by Henderson-Hasselbalch equation,
The correct option is D.
When dissolving a substance in a solvent, stirring the solution will increased the rate at which the substance dissolved. This is because, when one stirs a solution, it exposes more surface area of the solute to the solvent, thus, increasing the interaction between the solute and the solvent. The higher the quantity of the solute that is exposed to the solvent, the higher the rate of dissolution of the solute.
Answer:
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Explanation:
i hope you find this answer
Melamine should be the right answer, i hope this helps.