The pH scale ranges from 0 to 14 under usual conditions and measures the acidity of an aqueous solution. This is derived from the molarity of protons (hydrogen ions, or H+) in the solution. To find pH for a given molarity, you need to know how to work wi
pOH=pKb+log([ConjugateAcid][Base]) Next, we will go over two example problems that show how to apply the Henderson-Hasselbalch equation. Example Problem 1 - Acid/Conjugate Base Solution Hydrofluoric acid has a pKa of 3.10. When the acid is dissolved in a solution with a...
A pH indicator is a substance that has a distinct color which depends on the pH of the solution in which it is added. It is an indicator that helps...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your...
Problem solving- solve practice problems using the acquired information Knowledge application- use your knowledge to answer questions about the acidity of various solutions Additional Learning For more information, check out the related lesson The pH Scale: Calculating the pH or pOH of a Solutio...
How can pH indicator strips determine the pH of a solution? In what pH range do methyl orange and phenolphthalein change color? Which indicator is the best to use for observing pH changes around pH = 3, pH = 4 and pH = 6? Thymolphthalein is an indicator that changes color over...
PH takes a measurement of the free hydrogen ions in the solution, and that is how the number is determined. When more hydrogen ions are present, the number is lower (more acidic). Something else you might come across while looking at pH resources is pOH. This is a somewhat similar measur...
Nanoparticles (NPs) can offer a handful of tools to tackle these problems by enabling efficacious and safe delivery of both virus- and host-directed therapeutics. Furthermore, they can enable maximized clinical outcome while eliminating the chance of resistance to therapy by tissue-targeting and ...
CSS Sprites are when you combine a number of images into the same image file. You then use background-position in the CSS file to control what part of that image will be visible for a certain element. This way, instead of having a number of HTTP requests, there will be just one for...
The positive ion comes from the base that was neutralized, and the negative ion comes from the acid. If both the acid and the base are also strong electrolytes, the salt will have no effect on the pH of the water; the solution will remain at pH = 7. Salt of a Weak Acid. If ...
Calculate the volume of 0.20 M NaOH required to bring the pH of 20 mL of 5% acetic acid solution to 4.74, which is the pKa of acetic acid. If acetic acid has a Pka of 4.74, what is the pH of a mixture where the concentration of acetic acid is 1.50 M?