how to use spectroscopy to find pka indicator « on: January 17, 2010, 05:17:13 AM » hello; I'm a student and I'm taking a "general chemistry" course. in the last lab meeting i had - i used spectroscope to find the Absorbency of orange methyl indicator in different wave leng...
After having determined the equivalence point, it's easy to find the half-equivalence point, because it's exactly halfway between the equivalence point and the origin on the x-axis. Significance of the Half-Equivalence Point The Henderson-Hasselbalch equation gives the relationship between the pH ...
Ka values can be easily looked up online, and you can find the pKa using the same operation as for pH if it is not listed as well.Online pH and pOH calculator See the Resources for a web tool that allows you to determine the pH of various acidic and basic solutions. You can use ...
The College Board emphasizes an inquiry-based approach in the most up to date curriculum guidelines for AP Chemistry. This means thatyou'll be asked to work independently at times. The teacher will provide a prompt or question, but you'll design the rest of the lab.This gives you the oppo...
These new mols are used to find the pH. What equation is used for calculating the pH of an acid buffer? To calculate the pH of an acid buffer, the Henderson-Hasselbalch equation is used, which is pH = pKa + log(acid/base). The acid's concentration is on top of the fraction, and...
I am known to be occasionally wrong. Re: How do i know if i should use Ka or Kb? « Reply #3 on: November 29, 2014, 02:55:49 AM » You are told to find pH of a solution of a hydrochloride (or at least that's how I read what you wrote). That means your substance is...
How do you find pKa from a titration curve? What is a redox titration in analytical chemistry? What is the purpose of adding an indicator during an acid-base titration? How to choose an indicator for an acid-base titration? In a titration of a sample of HCl(aq) with 0.113 M NaOH(aq...
Explain the chemistry behind this. I need help with this problem: How many chiral centers does this compound have? (The answer should be 4) But I don`t understand how to find them. Can someone please show me which of the C-atoms that Explain why...
Online, or in a chemistry book, you can find a table of acid and base dissociation constants. References Purdue: Bronsted Acids and Bases pH Scale:pKa and Ka Cite This Article MLA Pesacreta, Mara. "How To Calculate Kb From Ka"sciencing.com, https://www.sciencing.com/calculate-kb-ka-817...
To find out whether these phenomena are related, rats were treated with rapamycin (a specific mTORC1 inhibitor) during 1-day unloading which resulted in a decrease in p70S6K phosphorylation to the level of vivarium control. This effect led to changes in a number of other ...