Answered: If the colour of a solution turns pink…

Science

Chemistry

If the colour of a solution turns pink on adding few drops of phenolphthalein indicator, it means solution is acidic

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter9: Aqueous Solutions And Chemical Equilibria

Section: Chapter Questions

Problem 9.31QAP

See similar textbooks

Related questions

Q: List the composition of buffered solutions?

A: The composition of buffered solutions has to be listed

Q: each of the following as a strong acid or a weak acid and indicate how each should be written in…

A: The main difference between a strong acid and weak acid is that strong acids are 100 % ionizable in…

Q: acid:conjugate base

Q: Giventhe following substances, identify the color with the indicator used (assuming that the…

A: From given Each column is filled with suitable color reaction with explanation as follows

Q: What happens to the pH of an aqueous solution when a salt is dissolved?

A: The pH scale is introduced by the scientists Sorensen in order to express the hydronium ion…

Q: Surface adsorption is a common form of contamination during precipitation process, where a layer of…

A: There are two types of adsorption namely phsical adsorption( physisorption) and chemical…

Q: Equal amounts of hypochlorous acid and sodium borate are mixed together, is the resulting solution…

A: The question is based on the concept of salt hydrolysis. we are mixing acid and base to form the…

Q: The indicator thymol blue changes from red to yellow between pH 1.2 and pH 2.8. If thymol blue is…

A: The objective of the question is to determine the pH and nature (acidic, basic, or neutral) of a…

Q: 1) What are the two ways of preparing buffer solutions?

A: Buffer solution: A buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: What is the difference between the strength of an acid or base and its concentration

A: An acid is a species which donates Proton while a base accepts proton. an acid after donating…

Q: Complete the following table by calculating the missing entries.In each case indicate whether the…

A: The equations which are useful to solve the above problem are 1) pH + pOH = 14 2) pH = -log[H+] 3)…

Q: Selection of suitable indicator or choice of indicator-Define

A: In the quantitative analysis, volumetric titration, the significant pH change occurs near or at the…

Q: Define neutral solution

A: Neutral solution has to be defined.

Q: Where do water and hydrochloric acid (HCI) lie on the pH scale in relation to each other.

A: pH scale tells about the acidity or basicity of the substances. It is numbered from 1-14. The…

Q: The phenolphthalein pH indicator is clear and colorless in an acidic solution, but it turns a pink…

A: Given: Acidic solution contains phenolphthalein and you add a drop of Solution 1 to Solution 2. A…

Q: Weak acid and the conjugate of that weak acid, can be the components of a buffer system. True

A: Buffer solution is solution which resist pH change by addition of small amount of Strong Acid/Base.…

Q: If a colorless solution turns pink when we add phenolphthalein, what can we conclude about the pH of…

A: Phenolphthalein is slightly soluble in water it is a weak acid Phenolphthalein is a colorless and…

Q: The indicator thymol blue changes from red to yellow between pH 1.2 and pH 2.8. If thymol blue is…

A: The objective of the question is to determine the pH and nature (acidic, basic, or neutral) of a…

Q: If the colour of a solution turns pink on adding few drops of phenolphthalein indicator, it means…

A: A question based on acid-base titration, which is to be accomplished.

Q: What concentration of CH3NH3B is necessary to prepare a pH = 10.00 buffer solution assuming the base…

A: Given, pH = 10.00 pOH = 14 - 10.0 = 4.00 Kb = 4.4×10-4 pKb = 3.36 As it is basic buffer, so,…

Q: what is a buffered system

A: Buffer system is the solution which resists the pH change by addition of small amount of Strong acid…

Q: 13) Bromthymol blue (BTB) is a chemical indicator that is blue all alone. When combined with a basic…

A: Bromothymol blue (BTB) gives yellow color at pH below 6. It is completely yellow at very low pH. It…

Q: Which of the following aqueous solutions will or will not act as a buffer solution? NaH₂PO4 Mg(NO₂)2…

Q: Normal alkanes have tertiary carbon atom. Select the correct response: True False

A: Normal alkane has general formula is CnH2n+2 Thus these are saturated hydrocarbons.

Q: Use the following information as a guide to help answer the next three questions. Your answer MUST…

A: Concept - Chemical indicators a substance that by changing color, confirm the presence or absence of…

Q: A solution in which phenolphthalein stays colorless. Does the property describe a solution that is…

A: Answer :- In Acidic and neutral solution, phenolphthalein stays colorless. In Basic solution…

Q: | To prepare a buffer solution of pH 3.50, the best acid choice is %3D + . Consequently, the buffer…

A: HCOOH i.e, Formic acid would have been best choice pKa=1⋅77×10−4

Q: Which of the following statements about buffered solutions are true? Select all that apply. Buffer…

Q: • Soap - red litmus paper chaned to blue. blue litmust paper showed no change in color • Synthetic…

Q: 30.0 mL of a 0.20 M solution of the weak base methylamine is titrated with 0.10 M nitric acid…

A: 30.0 mL of a 0.20 M solution of the weak base methylamine is titrated with 0.10 M nitric acid…

Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

If the colour of a solution turns pink on adding few drops of phenolphthalein indicator, it means solution is acidic

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Using an acetic acid/sodium acetate buffer solution, what ratio of conjugate base to acid will you need to maintain the pH at 5.00? Describe how you would prepare such a solution.
Explain why the hydrolysis of salts makes it necessary to have available in a laboratory more than one acid-base indicator for use in titrations.
What term is used to describe the formation of ions, in aqueous solution, from a. a molecular compound b. an ionic compound
Aluminum chloride, AlCl3, behaves more as a molecular compound than an ionic one. This is illustrated in its ability to form a fourth covalent bond with a chloride ion: AlCl3+ClAlCl4. From the Lewis diagram of the aluminum chloride molecule and the electron configuration of the chloride ion, show that this is an acidbase reaction in the Lewis sense, and identify the Lewis acid and the Lewis base. Aluminum chloride is a white solid at room conditions, although it is typically manufactured mixed with some yellow ironIII chloride. Its appearance is that of an ionic compound.
The following four diagrams represent aqueous solutions containing a weak acid (HA) and/or its conjugate base (A). Which of the four solutions is a buffer solution? There may be more than one correct answer.
a Write a net ionic equation to show that hypochlorous acid behaves as a Brnsted-Lowry acid in water. b The substance triethanolamine is a weak nitrogen-containing base, like ammonia. Write a net ionic equation to show that triethanolamine, C6H15O3N, behaves as a Brnsted-Lowry base in water.
Vitamin C is ascorbic acid (HC6H7O6), for which Ka is 8.0105. Calculate the pH of a solution made by dissolvinga 500-mg tablet of pure vitamin C in water anddiluting to 100 mL.
. Mixing together aqueous solutions of acetic acid and sodium hydroxide can make a buffered solution. Explain.
For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen atom? b. the electronegativity of the element bonded to the oxygen atom that bears the acidic hydrogen? c. the number of oxygen atoms? How does the strength of a conjugate base depend on these factors? What type of solution forms when a nonmetal oxide dissolves in water? Give an example of such an oxide. What type of solution forms when a metal oxide dissolves in water? Give an example of such an oxide.
You are asked to determine whether an unknown white solid is acidic or basic. You also need to say whether the acid or base is weak or strong. You are given the molar mass of the solid and told that it is soluble in water. Describe an experiment that you can perform to obtain the desired characteristics of the white solid.
A chilled carbonated beverage is opened and warmed to room temperature. Does the pH change and, if so, how does it change?
Arsenic acid (H3AsO4) is a moderately weak triprotic acid. Write equations showing its stepwise dissociation. Which of the three anions formed in these reactions will be the strongest Brnsted base? Which will be the weakest Brnsted base? Explain your answers.