Question: Why does a properly chosen indicator change color near the equivalence point in a titration?

Why does a properly chosen indicator change color near the equivalence point in a titration?

Step by Step Solution

★★★★★

3.45 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

The indicator has its acidic color when pH pK Hln 1 becau... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

878-E-C-E-E-C (1905).docx

120 KBs Word File

Students Have Also Explored These Related Chemical Engineering Questions!

Q:

The Ka of a certain indicator is 2.0 3 1026. The color of HIn is green and that of In2 is red. A few drops of the indicator are added to a HCl solution, which is then titrated against a NaOH...

Q:

The distinctive odor of vinegar is due to acetic acid, CH3COOH, which reacts with sodium hydroxide in the following fashion: If 3.45 mL of vinegar needs 42.5 mL of 0.115 M NaOH to reach the...

Q:

The mass percentage of chloride ion in a 25.00-mL sample of seawater was determined by titrating the sample with silver nitrate, precipitating silver chloride. It took 42.58 mL of 0.2997 M silver...

Q:

please help ASAP please-please help ASAP Concentration of NaOH0.1023mol/L Brand name of vinegar Unknown \#2 Initial buret volume (V1)0.00mL8.62mL27.43mL Volume of NaOH Delivered (V2V1)...

Q:

Is acetic acid the unknown acid based on this data? Explain ata. Data: Experiment 2; Determination of an Acid Ionization Constant 0.100MNaH A. Determination of the Molar Mass of an Unknown Acid...

Q:

OBJECTIVES: In this experiment you will investigate the solubility of calcium iodate in solutions of varying amounts of added nitric acid (i.e. varying [H3O+]) and determine the solubility product...

Q:

Please explain the 4 short parts to this question, thank you. 0.1M Part 3: Titration of a Diprotic Acid Against a Strong base Answer the following questions with workings, calculations and units...

Q:

Complete the following table. Table D. Calculated vs Measured pHs for Na,co3 Titration mL of 0.20 M HCI added Calculated pH Measured pH (from prelab) (from titration curve) 49 11.10 0.00 11.66 4.0...

Q:

Label the pH scale below, indicating theacidity of a solution in the given regions. Indicate the color of phenolphthalein withinthe pH ranges shown below. Why is phenolphthalein an appropriate...

Q:

A series of titrations of lactic acid, CH 3 CH(OH)COOH (pK a = 3.86) is planned. About 1.00 mmol of the acid will be titrated with NaOH(aq) to a final volume of about 100 mL at the equivalence point....

Q:

In addition to Department stores that sell clothing products such as clothes and shoes, this department store also has a supermarket or supermarket that sells food and daily necessities. How is the...

Q:

What are some accounting-related professions?

Q:

The return pattern of art market has been 1 0 % , 2 % , 8 % , - 1 0 % , - 3 % , and 6 % over the last six years. What has been the geometric average return over the last six years?

Q:

The main subsidiaries of the Project Management Plan used as Inputs to the Control Quality Process are the Quality Management Plan, the Lessons Learned Register, the Quality Control Measurements, the...

Q:

Calculate [H + ] and pH for the following solutions: (a) 0.010 M HNO 3 (b) 0.035 M KOH (c) 0.030 M HCl (d) 3.0 M HCl (e) 0.010 M [(CH 3 ) 4 N + ]OH -

Q:

Make a list of the common strong acids and strong bases. Memorize this list.

Q:

Explain why hydrated metal ions such as (H 2 O) 6 Fe 3 + hydrolyze to give H + , but hydrated anions such as (H 2 O) 6 Cl= do not hydrolyze to give H + .

Q:

Amortization schedule with periodic payments. Moulton Motors is advertising the following deal on a used Honda Accord: "Monthly payments of $245.94 for the next 48 months and this beauty can be...

Q:

Stevens Textile Corporation's 2019 financial statements are shown below: Balance Sheet as of December 31, 2019 (Thousands of Dollars) Cash $1,080 Accounts Payable $4,320 Receivables $6,480 Accruals...

Q:

1) You are the president and chief executive officer of a family owned manufacturing firm with assets of $45 million. The company articles of incorporation and state law place no restrictions on the...