Explain changes color at the end point from colorness

Assignment Help Chemistry
Reference no: EM13209916

the indicator that you used in the titration was thymol blue. this indicator changes color at the end point from red (acidic) to yellow at pH 2.0 . suppose you chose phenolphthalein , which changes color at the end point from colorness(acidic) to pink at pH8.5 .Would you need the same , more or less volume of NaOH in the back-titration?

Reference no: EM13209916

Questions Cloud

What is the standard deviation of acres burned per year : the number of acres burned by forest fires and range fires each year is normally distributed with a mean of 5,300 acres. Last year 4,400 acres burned and it was reported that this acreage was 1.43 standard deviations below the mean.
What was the situation in the 2009 nyc labor market : La, who lost his human resources job at Wall Street firm Goldman Sachs in November, had prepared his spiel. The Hoboken, New Jersey, resident told the recruiter how he could help reevaluate the brokerage's call centers to be more efficient.
Explain test the functional groups present in compound : A shelf containing several chemicals (Salicylic acid, 4-(4-Hydroxyphenyl)butan-2-one {a.k.a. Raspberry Ketone} and 4-methylaniline) fell and the vials shattered.
Define the production of antacids : you are a manufacturer of antacids. you could use either mg (oh)2 or al(oh)3 in your formulation. you can buy either of these for $2.00 per pound.
Explain changes color at the end point from colorness : suppose you chose phenolphthalein , which changes color at the end point from colorness(acidic) to pink at pH8.5 .Would you need the same , more or less volume of NaOH in the back-titration?
How many grams of calcium carbonate needed in antacid tablet : how many grams of calcium carbonate , CaCO3, do you need in an antacid tablet to neutralize 20 ml of stomach acid ?
Create a script that presents a movie guessing game : Use a single script file named Week5.php to display and process the form Can this be done with the movies 8 mile and black swan.
Marijuana laws in colorado and washington : What are the new marijuana laws in Colorado and Washington - should marijuana be legalized nationally?
What is the number of significant decimal digits : the 36 bit computer uses the 28 bit mantissa and the 8 bit exponent. what is the number of significant decimal digits and what is the range of real numbers for this machine?

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd