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pH of Some Common Acid and Base

Limitations of pH scale

pH of Acids and Bases – FAQs

The pH value of acid and base varies with change in concentration. Hence, under the standard conditions: i.e. 25°C, and 1 atmospheric pressure, the pH value of some common acids and bases at 1 mMol/L, 10 mMol/L, and 100 mMol/L is given below:

pH of Acids Chart

The following chart shows the pH value of some commonly known acids

Acid name

Chemical Formula

1 mMol/L

10 mMol/L

100 mMol/L

Boric Acid

H3BO3

6.12

5.62

5.12

Carbonic Acid

H2CO3

4.68

4.18

3.68

Chromic Acid

H2CrO4

3.03

2.33

2.06

Hydrochloric Acid

HCl

3.01

2.04

1.08

Hydrofluoric Acid

HF

3.27

2.65

2.12

Hydrogen sulfide

H2S

4.97

4.47

3.97

Nitric Acid

HNO3

3.01

2.04

1.08

Nitrous Acid

HNO2

3.28

2.67

2.13

Selenic Acid

H2SeO4

2.74

1.83

0.97

Sulphuric Acid

H2SO4

2.75

1.87

1.01

pH of Bases Chart

The pH of commonly known Bases is mentioned in the below chart:

Base name

Chemical Formula

1 mMol/L

10 mMol/L

100 mMol/L

Ammonium Hydroxide

NH4OH

10.09

10.61

11.12

Barium Hydroxide

Ba(OH)2

11.27

12.22

13.08

Calcium Carbonate

CaCO3

9.91

9.91

9.91

Calcium Hydroxide

Ca(OH)2

11.27

12.20

12.46

Chromium(III) Hydroxide

Cr(OH)3

7.04

7.04

7.04

Iron(II) Hydroxide

Fe(OH)2

9.45

9.45

9.45

Magnesium Hydroxide

Mg(OH)2

10.40

10.40

10.40

Potassium Carbonate

K2CO3

10.52

11.00

11.36

Sodium Hydroxide

NaOH

10.98

11.95

12.88

Zinc Hydroxide

Zn(OH)2

8.88

8.88

8.88

Also Read,

pH of Acid and Base

pH stands for Potential of Hydrogen, which simply means the power of hydrogen in a compound. pH value helps determine the nature of the solution. It helps to define the acidity and basicity of a solution. pH value should be balanced for the proper well-being of the environment and living organisms.

This article will cover information about the pH of acid and base, the pH scale, the calculation of pH value and the importance of pH.

Table of Content

  • What is pH in Chemistry?
  • pH of Acid and Base
  • pH scale
  • Why does a Water Source Change pH?
  • How to calculate pH ?
  • Importance of pH

Similar Reads

What is pH in Chemistry?

pH is the amount of concentration of hydrogen ions in a solution. It helps to regulate blood functions and digestive functions in the human body and is also responsible for the well-being of the environment. The Danish chemist Soren Peter Lauritz Sorensen introduced the concept of pH in 1909. Earlier, it was denoted by the notation “pH•“, with H• as a subscript to the lowercase p, which was later revised to pH in 1924....

pH of Acid and Base

pH value of a solution can be defined according to its ability of dissociation in H+ and the relative concentration of hydrogen ions in pure water. According to this, the solutions are classified as acids, bases and neutral. If the concentration of hydrogen in pure water is greater than 1 × 10-7 M, the solution acidic, if it is less than 1 × 10-7 M, the solution is termed as basic or alkaline. If the concentration of hydrogen in pure water is exactly 1 × 10-7 M, the solution will be neutral....

pH scale

pH scale is used to measure acidity and basicity of a solution. It determines the strength of acids and bases. pH scale is a universal indicator that shows different colours at different concentration of hydrogen ions. The value of pH scale ranges from 0-14, this is a standard value taken to measure the pH of various compounds where 0 means strong acid, 14 means strong basic, and 7 means the solution is neutral. The values on pH scale is the logarithmic value of concentration of hydrogen ion....

Why does a Water Source Change pH?

The pH of surface water falls under the range 6.5 to 8.5 and groundwater have a pH under range 6.0 to 8.5. The pH value of pure water is 7, that makes it a neutral solution. However, the pH of water can change due to numerous natural factors and human interaction. Natural factors like photosynthesis, respiration can cause a shift in pH level of water. When gases like carbon-dioxide is dissolved in water, it increases the acidity of the water. Various human activities like discharging wastewater in water bodies, agricultural and industrial waste, oil spillage, etc causes water pollution and hence results in change of pH level. Accumulation of various other minerals, pollutants, soil in water can also cause in varying pH levels of water....

How to calculate pH ?

pH means the concentration oh H+ ions so to calculate the pH value of an aqueous solution, we have to simply calculate the concentration of the hydrogen ion in moles per liter (molarity). The pH value is calculated by:...

Importance of pH

The importance of pH is mentioned below:...

Limitations of pH scale

pH scale has the following limitations:...

pH of Some Common Acid and Base

The pH value of acid and base varies with change in concentration. Hence, under the standard conditions: i.e. 25°C, and 1 atmospheric pressure, the pH value of some common acids and bases at 1 mMol/L, 10 mMol/L, and 100 mMol/L is given below:...

pH of Acids and Bases – FAQs

1. What is full form of pH?...

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#Acids # Bases and Salts #Analytical Chemistry #Chemistry-Class-10 #PCM #Class 10 #School Chemistry #School Learning

Limitations of pH scale

pH of Acids and Bases – FAQs