Phenolphthalein is colorless in an acidic solution. In an acidic solution, the benzoid form of phenolphthalein exists. In the benzoid form of...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
What is the color of a phenolphthalein indicator in an acidic solution? 1. A substance with a pH of 9 is considered {Blank}. \\ 2. If red litmus paper is used to test the substance it would turn what color? \\ a. basic; red b. acidic; red c. acidic; blue d. ...
How can you estimate the pH range of an indicator's color change? A certain indicator, HA, has a Ka value of 0.000025. The protonated form of the indicator is red and the ionized form is yellow. a. What is the pKa of the indicator? b....
It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, structure, behaviour, and changes that occur when they interact with other things. The quantum mechanical approach is currently used...
Alternatively, absorbance spectroscopy may be used with a pH indicator to calculate the pH usingBeer's law. Spectroscopic pH measurements using a single acid-base indicator are accurate to within one pKa value. Combining two or more indicators increases the accuracy of the measurement. ...
What is pKa in biochemistry? What is carbolic acid and what is its usual application? What is thermometric titration? What is EDTA titration? What does phenolphthalein indicate? What is neutralization? Define acid salt What's acid reflux?
Why is a burette used in titration? Why use methyl orange instead of phenolphthalein as a pH indicator? Why is an indicator used in titration? Why is calibration required in an analog multimeter? What effect does a buffer have on the pH of a solution?
Why use methyl orange instead of phenolphthalein as a pH indicator? How does hyperventilation affect blood pH? What steps can be taken to effectively stop the harmful effects of acid rain? Why is the pH different below the thermocline in a body of water?
A solution contains {eq}0.063 \ g {/eq} of oxalic acid, {eq}\displaystyle H_2C_2O_4 \cdot 2H_2O {/eq}, in {eq}250 \ mL {/eq}. What is the molarity of this solution? Hydrates: An ionic compound is classified as a hydrate...
3 Briefly answer each of the following. 1.Why do you add phenolphthalein to the solution to be titrated in this experiment before beginning the titration? 2.Why is it necessary to titrate the NaOH s 1. In a titration of HCl with NaOH, 100.0 mL of...