The concentration of hydrogen ions ($[H^+]$) in a solution is inversely related to its pH value. The relationship is defined by the formula: $pH = -\log_{10}[H^+]$ This means that a lower pH value indicates a higher concentration of hydrogen ions, and conversely, a higher pH value indicates a lower concentration of hydrogen ions.
We need to find the solution with the highest hydrogen ion concentration. This corresponds to the solution with the lowest pH value among the given options:
Comparing the pH values (8, 10, 4, 5), the lowest value is 4. Therefore, the solution with a pH of 4 has the highest concentration of hydrogen ions.
Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds?
Which one of the following is the chemical formula of Hypobromous acid?
Which one of the following is not used as a raw material in the manufacture of glass?
Which one of the following statements about dihydrogen (H 2) is not correct?
Reaction of quick lime (CaO) with water to produce slaked lime (Ca(OH) 2) is an example of