Calculate the pH of the following solution:HCl(aq) concentration 0.0036 mol L-1Give you answer with 2 significant figures (1 decimal place). Remember pH has no units.
Question
Calculate the pH of the following solution:HCl(aq) concentration 0.0036 mol L-1Give you answer with 2 significant figures (1 decimal place). Remember pH has no units.
Solution
To calculate the pH of a solution, you can use the formula pH = -log[H+], where [H+] is the concentration of hydrogen ions in the solution.
In this case, the HCl is a strong acid, which means it completely dissociates in water to form H+ and Cl- ions. Therefore, the concentration of H+ ions is equal to the concentration of the HCl, which is 0.0036 mol L-1.
Step 1: Write down the concentration of H+ ions: [H+] = 0.0036 mol L-1
Step 2: Substitute this value into the pH formula: pH = -log(0.0036)
Step 3: Calculate the pH using a calculator.
The pH of the solution is approximately 2.4 (rounded to one decimal place).
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