Question

QUESTION 1 Which indicator would be the best to use for a titration between 0.10 M...

QUESTION 1

Which indicator would be the best to use for a titration between 0.10 M HF with 0.10 M NaOH? You will probably need to consult the appropriate table in the book.

A.

thymol blue, color change at pH 8-10
B.

methyl violet, , color change at pH 0-2
C.

alizarin yellow R, color change at pH 10-12
D.

methyl red, color change at pH 3-5
E.

bromothymol blue, color change at pH 6-8
Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Which of the following indicators would be most suitable for the titration of 0.10 M (CH3)3N...
Which of the following indicators would be most suitable for the titration of 0.10 M (CH3)3N (Kb = 6.5×10−5) with 0.10 M HCl? Transition ranges in pH units are given in parentheses after the indicator name. 1. thymol blue (1.2 - 2.8) 2. alizarin yellow (10.1 - 12.0) 3. phenolphthalein (8.0 - 9.6) 4. bromocresol green (3.8 - 5.4) 5. chlorophenol red (4.8 - 6.4) 6. bromothymol blue (6.0 - 7.6)
Methyl orange is an indicator with a Ka of 3.4 × 10−4 . Its non-ionized form...
Methyl orange is an indicator with a Ka of 3.4 × 10−4 . Its non-ionized form is red, while its ionized form is yellow. At a pH of exactly 4.00, this indicator’s color would best be described as which of the following colors? 1. blue 2. green 3. cyan 4. yellow 5. orange 6. yellow-orange 7. red 8. red-orange 9. purple
Which of the following indicators would be most appropriate to determine the equivalence point for a...
Which of the following indicators would be most appropriate to determine the equivalence point for a titration of a weak base (25 mL 0.10 M morpholine Kb=3.1 x 10-6) with 0.10 M HCL. Phenolthalein pH=9 Bromthymol blue pH=7 Methyl Red pH=5 Phenol Red pH=8 My TA needs me to show how to calculate the pH for this titration.
Which of these indicators would be the best choice for the titration of HBr(aq) with NH3(aq)...
Which of these indicators would be the best choice for the titration of HBr(aq) with NH3(aq) ? Assume 0.1 M solutions A) methyl orange, pKIn = 3.4 B) * bromocresol green, pKIn = 4.7 C) bromothymol blue, pKIn = 7.1 D) phenolphthalein, pKIn = 9.4 the answere is B but im not sure why
Calculate the pH at the second stoichiometric point when 160 mL of a 0.020 M solution...
Calculate the pH at the second stoichiometric point when 160 mL of a 0.020 M solution of oxalic acid (Ka1=5.4*10-2, Ka2=5.4*10-5) is titrated with 2.0 M NaOH. What is the most suitable indicator for this titration? bromocresol purple bromocresol green phenol red methyl red phenolphthalein methyl orange t hymol blue thymolphthalein
Indicator Low pH color Transition pH range High pH color Thymol blue (first transtion) Red 1.2...
Indicator Low pH color Transition pH range High pH color Thymol blue (first transtion) Red 1.2 - 2.8 Yellow Methyl red Red 4.4 - 6.2 Yellow Bromothymol blue Yellow 6.0 - 7.6 Blue Thymol blue (second transition) Yellow 8.0 - 9.6 Blue Phenolphthalien Colorless 8.3 - 10.0 Fuchsia 1. Select all of the following statements that are true about the universal indicator used in this experiment A.The universal indicator is a single chemical compound. B. At pH 1.2 the indicator...
(a) How did the mL of titrant needed to reach the endpoint using the indicator you...
(a) How did the mL of titrant needed to reach the endpoint using the indicator you chose (Part 3) compare with the mL of titrant needed to reach the equivalence point (Part 2)? (b) What does this say about these two methods? Is one a better means of monitoring a titration than the other? Why or why not? Table 1: Indicator, pH Range, and Color Change Flask Indicator Amount Needed for Reaction to Complete pH Range pH at Color Change...
When 50.00 mL of an acid with a concentration of 0.122 M (for which pKa =...
When 50.00 mL of an acid with a concentration of 0.122 M (for which pKa = 4.94) is titrated with 0.100 M NaOH, what is the pH at the equivalence point? Which one of the following indicators could be used for the titration? The approximate pH range of the color change has been included in parenthesis. Methyl green (0.2-1.8) Ethyl red (4.0-5.8) Phenolphthalein (8.2-10.0) or None of these
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this experiment. What is the relationship between concentration and ionization? Explain the reason for this relationship 2.) Explain hydrolysis, i.e, what types of molecules undergo hydrolysis (be specific) and show equations for reactions of acid, base, and salt hydrolysis not used as examples in the introduction to this experiment 3.) In Part C: Hydrolysis of Salts, you will calibrate the pH probe prior to testing...
1. How many dissociated H+ ions are there in (3.2x10^-1) L of an aqueous solution whose...
1. How many dissociated H+ ions are there in (3.2x10^-1) L of an aqueous solution whose pH is 11.55? * Note: your answer is assumed to be reduced to the highest power possible. 2. A volume of 10.0 0 mL of an unknown concentration of acetic acid solution is neutralized by 38.50 mL of 0.236M sodium hydroxide solution. Determine the conventratino of the unknown acetic acid solution. 3. A solution is 0.047 M in nitrous acid, HNO2, has a pH...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT