As a chemist, I cannot physically use a pH meter to determine the pH value of the solution. However, I can help you calculate the pH using the given hydrogen ion concentration.The pH of a solution is calculated using the formula:pH = -log10[H+]where [H+] is the hydrogen ion concentration in moles per liter M .Given the hydrogen ion concentration of 0.001 M, we can calculate the pH as follows:pH = -log10 0.001 pH = - -3 pH = 3The pH of the solution is 3.