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Finding the basicity of an acid:
The concentration of the unknown acid must be the same as that of the base.
You will need:
1 polystyrene cup
2 250ml beaker
1 laboratory thermometer
The unknown acid (aq.) with the same concentration as NaOH
NaOH (aq.)
Steps:
1. Mix an equal volume of the base, using NaOH (aq.) and the unknown acid, both of equal concentration. (e.g. 50 cm3 NaOH and 50 cm3 unknown acid; total volume of water is 100 cm3).
2. Measure and record the highest temperature change using the laboratory thermometer.
3. Next, you need to mix another volume of NaOH (aq.) and half the volume as NaOH of the unknown acid. (e.g. 50 cm3 NaOH and 25 cm3 unknown acid). Since total volume of water in step 3 is only 75 cm3, have to add 25 cm3 to make the total volume of water 100 cm3 so as to make both volumes of water used the same. So have to add 25cm3 to either NaOH or the unknown acid before mixing them.
4. Repeat step 2.
5. If the temperature rise of both is the same, then the unknown acid is dibasic. If the temperature rise of one is half of the one, then the unknown acid is monobasic.
Yep, this is what I got from my senior, hope it's correct!
What else can I help you with?
What is the difference between monobasic and dibasic acids?
Monobasic acids can donate only one proton (H+) per molecule in a reaction, while dibasic acids can donate two protons per molecule. This means that dibasic acids have double the acidic strength compared to monobasic acids.
Is sulphuric acid monobasic?
Yes, sulfuric acid is a monobasic acid because it can donate only one proton (H+) per molecule in an acid-base reaction.
Is dibasic acid more acidic than monobasic?
Yes, dibasic acids have two hydrogen ions to donate in an acid-base reaction, making them more acidic than monobasic acids that only have one hydrogen ion to donate.
What do you mean by basicity of an acid?
The basicity of an acid refers to the number of hydrogen ions (H+) that it can donate when it dissociates in a solution. A monobasic acid donates one H+, a dibasic acid donates two H+, and so on. It is a measure of the acid's strength and is related to its ability to neutralize bases.
Examples of the acids which are dibasic?
Sulfuric acid (H2SO4), phosphoric acid (H3PO4), and carbonic acid (H2CO3) are examples of dibasic acids. These acids have two ionizable hydrogen atoms, meaning they can donate two protons per molecule when dissolved in water.
What is the difference between monobasic and dibasic acids?
Monobasic acids can donate only one proton (H+) per molecule in a reaction, while dibasic acids can donate two protons per molecule. This means that dibasic acids have double the acidic strength compared to monobasic acids.
Is sulphuric acid monobasic?
Yes, sulfuric acid is a monobasic acid because it can donate only one proton (H+) per molecule in an acid-base reaction.
Is dibasic acid more acidic than monobasic?
Yes, dibasic acids have two hydrogen ions to donate in an acid-base reaction, making them more acidic than monobasic acids that only have one hydrogen ion to donate.
What do you mean by basicity of an acid?
The basicity of an acid refers to the number of hydrogen ions (H+) that it can donate when it dissociates in a solution. A monobasic acid donates one H+, a dibasic acid donates two H+, and so on. It is a measure of the acid's strength and is related to its ability to neutralize bases.
How hypophosphorous acid behaves as monobasic or dibasic or tribasic or tetrabasic?
it is mono basic because it releases one hydrogen ion in solution.
Examples of the acids which are dibasic?
Sulfuric acid (H2SO4), phosphoric acid (H3PO4), and carbonic acid (H2CO3) are examples of dibasic acids. These acids have two ionizable hydrogen atoms, meaning they can donate two protons per molecule when dissolved in water.
Is na2hpo4 is dibasic?
No. Na2HPO4 is only a monobasic acid, corresponding to the remaining hydrogen atom. This is a very weak acid.
Why is KH2PO4 monobasic and K2HPO4 dibasic?
KH2PO4 is monobasic because it contains one replaceable hydrogen ion for each molecule of the compound. K2HPO4 is dibasic because it contains two replaceable hydrogen ions for each molecule of the compound. The number of replaceable hydrogen ions determines whether a compound is classified as monobasic, dibasic, tribasic, etc.
Why sulphuric acd is dibasic acid?
Sulfuric acid is considered dibasic because it can donate two protons (H+) per molecule in acid-base reactions. This means it has two replaceable hydrogen atoms, allowing it to form two sets of salts.
What is the basicity of oxalic acid?
the basisity of oxalic acid is dibasic acid
What is the chemical formula for phosphinic acid?
Formula: H3PO2 But it is a monobasic acid.
What is monobasic?
Monobasic typically refers to a compound or chemical substance that can donate only one hydrogen ion (proton) per molecule in an acid-base reaction. Monobasic acids, for example, like hydrochloric acid (HCl), can donate one proton in a chemical reaction.
