Calculate the pH of a 3.5 * 10^-3 M HNO₃ solution. A) -2.46 B) 0.54 C) 2.46 D) 3.00 E) 3.46

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Quizplus · Accepted Answer

The concentration of HNO3 is given as $3.5 \times 10^{-3} M$. HNO3 is a strong acid, meaning it dissociates completely in water. Therefore, the concentration of $H^+$ ions in the solution is also $3.5 \times 10^{-3} M$. The pH is calculated using the formula pH = -log[H+]. Plugging in the numbers, pH = -log(3.5 x 10^-3) = 2.46.

Calculate the PH of a 3