Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Chemistry
Based on how the indicator phenolphthalein worked in Lab III, explain why the golden rod paper turned color when sprayed with Windex (a base) and changed back to the golden rod color when treated with vinegar (an acid) in the demonstration in class.
1 answer
Bases turn phenolphthalein pink and acids leave it colorless.
You can
ask a new question
or
answer this question
.
Similar Questions
If you have two solutions, one of pH 7 and one of pH 9, but they are not labeled, which indicator would be used to identify the
Top answer:
Yes, based on the pH ranges for the indicators, you can determine which indicator would be suitable
Read more.
Phenolphthalein is an indicator that changes colour to pink/purple between pH 8-->10, however, neutralization occurs when pH=7.
Top answer:
Because ih the titration of a strong acid with a strong base the titration curve is so steep near
Read more.
A 25.0 mL sample of NaHSO4(aq) was titrated with 0.500 mol/L NaOH(aq) using phenolphthalein indicator. At the endpoint, one drop
Top answer:
Please show all work. I’m very confused with this question
Read more.
why we use phenolphthalein indicator in the determination of the strenght of NAOH by using standard oxalic acid why not the
Top answer:
What others specifically. The general answer is that phenolphthalein changes color more nearly at
Read more.
Phenolphthalein would not be an appropriate indicator to use to determine the Ka1 of phosphoric acid Why not? what indicator
Top answer:
The pH range for phenolphthalein is 8-10 so it would not be appropriate for H3PO4 since the
Read more.
Explain why Na2CO3 against HCL titration using phenolphthalein indicator does not go to completion but stops at the NaHCO3
Top answer:
Na2CO3 act as a weak base and HCl is a strong acid. Phenolphthalein is not a suitable indicator for
Read more.
(Choose the correct letter) Name the indicator that turns pink exactly at pH 7?
b. phenolphthalein c. bromothymol blue d. red
Top answer:
options. However, the correct answer is actually: a. methyl red.
Read more.
EXPLAIN WHY NA2CO3 AGAINST HCL TITRATION USING PHENOLPHTHALEIN INDICATOR DOES NOT UNDERGO COMPLETION BUT STOPS AT NAHCO3 STAGE
Top answer:
No idea
Read more.
Can someone please help me on this two Chemistry questions...they are from my lab....the lab was on Acids and Bases using Red
Top answer:
On q1. pH paper can tell pHs over a wide range, rather accurately. Did the Cabbage juice do that?
Read more.
Blueprint paper can be made by soaking paper in a brown solution of Fe(CN)6^3- and iron (III) ammonium citrate. Wherever the
Top answer:
I don't know how much detail you want but here is a fairly good explanation of what goes on in the
Read more.
Related Questions
Rod A is
9 10 m long. It is 1 8 m longer than Rod B. Rod C is 1 10 m shorter than Rod B. What is the length of Rod C?
Explain why, when a polythene rod which has been rubbed with any cloth is held high above small pieces of paper on a table, the
Am i correct for the following?
1. "quick data" such as that of a mass measurement on a balance located at the far side of the
To determine the sodium carbonate content & total alkali in NaOH, the following steps were performed:-
1) 2.0g of NaOH was
Use the lab report below to Complete the Unit 7 portfolio. This lab report is based on the lab investigations given in Connexus
Potassium tetraoxalate has the formula H2C2O4.KHC2O4.xH2O. 1.923 g of the above compound was neutralized by 22.7 mL of 1.000 M
why sodium carbonate against hydrochloric acid titration using phenolphthalein indicator does not go to completion but stops at
Hi, I'm doing a lab with acid-base indicators and I'm utterly confused. The lab procedure goes like this:
1) Make your own
Explain why when a polythene rod which has been rubbed with dry cloth is held high above small pieces of paper on the table, the
1) oi50 . tinypic . com / ejh6vm . jpg
The most suitable indicator for the titration is: A)methyl violet B)chlorophenol red