We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
In a titration, the indicator is used to signal when the endpoint has been reached. O...
Choose the right indicator to indicate the endpoint for a
titration whose titration curve looks as follows:
Choose the right indicator to indicate the endpoint for a titration whose titration curve looks as follows: 12 10 I et 4 2 8 10 4 6 ml NaOH added bromocresol green (yellow below pH of 3.8, blue above 5.4) bromothymol blue (yellow below pH of 6.0, blue above 7.6) alizarin yellow (yellow below pH of 10.1, red above 12.0) phenolphthalein (colorless below...
Which method can be used to detect the end point of an EDTA titration? redox indicator metal ion indicator ion-selective electrode acid-base indicator O
The endpoint will be when the faint pink color of the indicator lasts for about 30 seconds. Why doesn’t it stay pink? (Give one of two possible explanations for this.)
grams of KHP 0.6413
mL NaOH needed to titrate KhP to endpoint 38.80
Grams of unknown acid: 1.5106
mL NaOH needed to titrate unknown acid to endpoint
33.55
need to know molarity of NaOH solution and Molar mass of
unknown acid. Please help and show work!
CHEM 265 LAB EXPERIMENT NUMBER 4 DETERMINATION OF THE MW OF AN UNKNOWN ACID This experiment utilizes a titration to determine the molecular weight of an unknown acid. In this experiment, the endpoint of...
When carrying out the titration of KHP with NaOH solution, how will you know when the titration has reached the endpoint? Be as specific as possible. What will you look for? Do not simply say color change
Discuss what a titration is and what it is used for. _________________________ Discuss/Explain what an indicator is, what its purpose is and why the choice of indicator is important. ___________________
Colours of phenolphthalein indicator 100 Alkaline End-point True False 1. The phenolphthalein indicator is not affected by the pH of the solution. 2. The phenolphthalein Indicator changes colour close to the point of neutralisation which shows the end-point of the titration, 3. When adding acid to base the phenolphthalein indicator changes colour from colourless to pink at the end of the titration Titra Acids and alkalis
Which indicator below could be used in the titration of aqueous NaOH with HCl solution? Indicator Acid Range Color Color-change pH Basic Range Color i. pink 1.2-2.8 yellow ii. blue 3.4-4.6 yellow iii. yellow 6.5-7.8 purple iv. colorless 8.3-9.9 red
The calmagite indicator changes from a pink to a blue color during the titration. Describe why the color change occurs. This question is part of the experiment "determination of water hardness", and you should answer the question based on the following background information(abstract information and you can get the answer). In this titration Calmagite is used an indicator for both calcium and magnesium. The equation below shows the competition reaction between the calmagite indicator (In) and EDTA for Mg and...
Why is bromophenol blue rather than phenolphthalein used as an indicator for the antacid titration?