Hydrogen Ion Concentration and pH Relationship
The pH of a solution is a measure of its acidity or alkalinity, and it is directly related to the concentration of hydrogen ions ($[H^+]$). The relationship is defined by the formula:
$ \text{pH} = -\log_{10}[H^+] $
This means that a lower pH value indicates a higher concentration of hydrogen ions, signifying a more acidic solution. Conversely, a higher pH value indicates a lower concentration of hydrogen ions (and a higher concentration of hydroxide ions), signifying a more alkaline or basic solution.
Identifying the Solution with Highest Hydrogen Ion Concentration
The question asks for the solution with the highest concentration of hydrogen ions. Based on the inverse relationship between pH and $[H^+]$, we need to find the option with the lowest pH value.
The given pH values are:
- pH = 10
- pH = 8
- pH = 4
- pH = 5
Comparing these values, pH = 4 is the lowest.
Conclusion
Since the solution with pH = 4 has the lowest pH value among the options, it possesses the highest concentration of hydrogen ions.
Similar Questions
- What is oxidization?
- With which substance does silver react and turn black?
- Which of the following determines that a chemical reaction has not taken place?
- Which chemical process results in the formation of plaque on copper, the rusting of iron and the blackening of silver?
During an experiment, iron nails are placed in copper sulphate solution, and a reddish-brown deposit forms on the nails. What does this observation demonstrate about the type of chemical reaction and the substances involved?
In the reaction Na2SO4(aq) + BaCl2(aq) → BaSO4(*) + 2NaCl(aq), what will be the actual physical state that can replace (*)?
A student mixes aqueous solutions of barium chloride and sodium sulphate. A white curd-like substance forms instantly. What type of chemical reaction is primarily responsible for this observation?
In a laboratory, copper sulphate solution reacts with iron filings, causing a colour change and the deposition of a new metal. Which statement correctly explains the reason for this reaction?
- ________ is not a chemical change.
- Which of the following product is formed due to burning of a magnesium ribbon with a spirit lamp?
Important Questions from Chemical Reaction
Which of the following statement is/are true?
I. In physical change new substance is formed. substance is formed.
II. In chemical change no new substance is formed.
Which of the following cells involves similar chemical reactions?
The information not obtained from balanced chemical equation is
Oxygen cannot be obtained by which one of the following methods?
Which of the following statement is correct?
I. Insoluble salt is obtained by precipitation reaction.
II. Addition of oxygen or loss of hydrogen is called oxidation.
