Bio/chem relation between pH and [H+]

In summary, pH is a measure of the acidity or basicity of a solution and is related to the concentration of hydrogen ions ([H+]). This concentration is important in biochemistry and chemistry as it affects the properties and reactions of substances. The pH of a solution can be determined using a pH meter or indicator paper. pH and pOH are related by the equation pH + pOH = 14 and are both affected by temperature, with an increase in temperature resulting in a decrease in pH.
  • #1
aisha
584
0
Hi my question is How does the pH relate to the concentration of Hydrogen ions?

what I think is The relationship between the pH and the concentration of Hydrogen ions is that the -log of the hydrogen ion concentration is equal to the pH, but this doesn't seem right at all.

can someone please help me out?:confused:
 
Physics news on Phys.org
  • #2
The pH is [tex] pH = -\log[H^{+}] [/tex]. So you are correct.
 
  • #3
I thought there would be a more complicated answer
 
  • #4
Nope. See pH definition and pH scale for more details - but they won't change what courtrigrad have already wrote.
 

1. How is pH related to the concentration of [H+]?

The pH scale is a measure of the acidity or basicity of a solution. It is based on the concentration of hydrogen ions ([H+]) in the solution. As the concentration of [H+] increases, the pH decreases, making the solution more acidic. Conversely, as the [H+] concentration decreases, the pH increases, making the solution more basic.

2. What is the significance of [H+] in biochemistry and chemistry?

The concentration of [H+] is important in both biochemistry and chemistry because it affects the properties and reactions of substances in a solution. In biochemistry, pH is critical for maintaining the proper function of enzymes and other biological molecules. In chemistry, [H+] is involved in acid-base reactions and can influence the solubility and reactivity of substances.

3. How is the pH of a solution determined?

The pH of a solution can be determined using a pH meter or pH indicator paper. A pH meter measures the electrical potential difference between a reference electrode and a glass electrode in the solution, and converts it into a pH value. pH indicator paper changes color in response to the acidity or basicity of a solution, providing an estimate of the pH.

4. What is the relationship between pH and pOH?

pH and pOH are two ways of measuring the acidity or basicity of a solution. They are related by the following equation: pH + pOH = 14. This means that as the pH decreases, the pOH increases and vice versa. A neutral solution has a pH of 7 and a pOH of 7.

5. How does temperature affect the relationship between pH and [H+]?

The relationship between pH and [H+] is affected by temperature because the dissociation of water into [H+] and hydroxide ions (OH-) is an endothermic reaction. This means that as temperature increases, more [H+] ions are produced, resulting in a decrease in pH. Conversely, as temperature decreases, fewer [H+] ions are produced, resulting in an increase in pH.

Similar threads

Chemistry Moles of NaOH to Create Buffer Solution pH=6 in 0.42M Ethanoic Acid
    • Biology and Chemistry Homework Help
Replies
3
Views
1K
Chemistry Finding the pH of this acid and its sodium salt solution
    • Biology and Chemistry Homework Help
Replies
7
Views
2K
Henderson Hasselbalch Equation - Request for Clarification
    • Chemistry
Replies
8
Views
868
Determining if the pH changes when a chemical is added
    • Biology and Chemistry Homework Help
Replies
2
Views
2K
What is the correct pH in a reaction between hydrogen sulfate ion and ammonia?
    • Biology and Chemistry Homework Help
Replies
4
Views
2K
Calculating the pH of a Buffer Solution
    • Biology and Chemistry Homework Help
Replies
7
Views
3K
Determining pH Fluctuations at Maximum Dosage of 50mg/L of 93% Sulphuric Acid
    • Biology and Chemistry Homework Help
Replies
3
Views
2K
Doubt about calculating the solubility of lamivudine (3TC)
    • Biology and Chemistry Homework Help
2
Replies
48
Views
7K
Acid Mixture pH Problem: Calculating Solution pH with CH3COOH, CH3COONa, and HCl
    • Biology and Chemistry Homework Help
Replies
5
Views
1K
Calculating pH of Al2(SO4)3 Solution
    • Biology and Chemistry Homework Help
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top