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What colors do litmus paper and phenolpthalein turn in presence of an acid or of base?
Litmus paper: red color in acidic solutions and blue color in basic solutions.Phenolphthalein: no color in acidic solutions.
What is acid base indicator?
An acid base indicator is a chemical substance that has the ability to change color depending on the pH.
Substance that is of one color in an acid solution and of another color in a basic solution is a what?
A substance that changes color depending on the pH of the solution is known as an acid-base indicator. These indicators are often used in chemistry to visually determine the acidity or basicity of a solution based on the color change they exhibit.
What is the definitions of an acid base and salt as they apply to chemistry?
An acid can be viewed as a substance that provides protons (H+) to solution. A base can be viewed as a substance that accepts protons or that provides hydroxyl ion (OH-). A salt is a substance that results from the reaction of an acid and a base.
What is a substance which a aquires protons from another substance called?
A substance that acquires protons from another substance is called a "base." In the Brønsted-Lowry acid-base theory, bases are defined as proton acceptors, while acids are proton donors. When a base accepts a proton, it often results in the formation of a conjugate acid.
What is an indicator as related to an acid and a base?
It is a substance(chemical or natural) which changes colour in the presence of an acid or base.
A substance used to indicate the presence of an acid base or neutral?
These substances are named pH indicators. See a list on the link bellow.
What makes a base or an acid?
To determine whether a substance is an acid or a base, you look at it's pH. If it is over 7, it is a base. If it is below 7, it is an acid. If the pH is 7, the substance is neutral.
How can one determine a Bronsted-Lowry acid and base?
A Bronsted-Lowry acid is a substance that donates a proton (H) in a chemical reaction, while a Bronsted-Lowry base is a substance that accepts a proton. To determine if a substance is a Bronsted-Lowry acid or base, you can look at its behavior in a reaction - if it donates a proton, it is an acid, and if it accepts a proton, it is a base.
How can you determine if substance is acid or base?
pH paper and litmus paper
What test can you know if it is a acid or base?
You can test whether a substance is an acid or a base using litmus paper. When dipped in the substance, blue litmus paper turns red in the presence of an acid, while red litmus paper turns blue in the presence of a base.
What things could be used to determine whether a substance is an acid or a base?
litmus paper.
What is litumus paper used to indicate?
litmus paper indicates wether a substance is an acid or a base if it is an acid the paper is turns red, if base it turns blue
What is used to determine the presence of acids and bases by a change in color?
Acid-base indicators are used for this purpose.
Can an amphoteric compound act like an acid and a base?
Am amphoteric substance can react as a base but also as an acid.
How can one determine the acid dissociation constant (Ka) of a substance without using the pH value?
One can determine the acid dissociation constant (Ka) of a substance without using the pH value by conducting a titration experiment. In this experiment, a known concentration of the acid is titrated with a strong base of known concentration. By measuring the volume of base required to neutralize the acid, one can calculate the Ka value using the initial concentrations of the acid and base.
What is an acid base?
An Acid is a substance that tastes sour and Base is a substance that tastes bitter and feels slippery.
