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Investigation into the efficiency of various indigestion tablets Essay Example
835 words 2 pages

Indigestion is a general term used to describe discomfort or pain in the upper abdomen or chest, which is sometimes experienced while our bodies digest the food we eat. A better and more scientific term for indigestion is dyspepsia. Indigestion is caused by too much acid in the stomach. Indigestion tablets contain bases, which neutralize […]

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The Effectiveness of Distilled Water Essay Example
3655 words 8 pages

Introduction This chapter includes the prevailing job state of affairs based on observations. besides. the aims. range and restriction. significance of the survey. definition of footings and conceptual model are included. Background of the survey Students in assorted parts of the Dasmarinas are happening troubles in securing proper and economical equipment for their experiments and […]

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Popular Questions About Acid Dissociation Constant

When does pH equal pKa?
The exact ratio of a buffer's base to acid concentration is given by the Henderson-Hasselbalch equation, which states the pH is equal to the pKa minus the logarithm of the concentration of the base divided by the concentration of the acid. When the concentrations are equal, the logarithmic value becomes zero, and the pH equals the pKa.
How to calculate pKa from pH?
If you know either pH or pKa, you can solve for the other value using an approximation called the Henderson-Hasselbalch equation: pH = pKa + log ([conjugate base]/ [weak acid]) pH = pka+log ([A - ]/ [HA]) pH is the sum of the pKa value and the log of the concentration of the conjugate base divided by the concentration of the weak acid.
Is pKa equal to pH?
One oft-cited solution to this equation is obtained by arbitrarily setting pH = pKa. In this case, log([A-] / [HA]) = 0, and [A-] / [HA] = 1. In words, this means that when the pH is equal to the pKa of the acid, there are equal amounts of protonated and deprotonated acid molecules.
What is the pKa value of CH3OH?
The pKa value of CH3OH is more than 15. This is a constant that measures the amount of acidic or basic ions in a solution. The weak acidity of methanol is due to the presence of the CH3 functional group. The presence of the OH group can cause it to release OH negative ions in a solution of water.