For each [H30+], determine the pH and state whether the solution is acidic or basic.
(a) [H3O+] = 0.0025 M
(b) [H3O+] = 1.8 × 10−12 M
(c) [H3O+] = 9.6 × 10−9 M
(d) [H3O+] = 0.0195 M
Step 1 of 3
Solution: Here, we are going to determine the pH of the given solutions and classify the solutions as acidic, basic or neutral.
pH is the negative logarithm to base 10 of hydrogen ion concentration.
pH = - log[H3O+ ]
We can distinguish acidic, neutral and basic aqueous solutions by the relative values of their pH
Acidic: pH < 7
Neutral: pH = 7
Basic: pH > 7
Given, [H3O+] = 0.0025 M = 2.5 x 10-3 M
Therefore, pH = - log[H3O+ ]
= - log (2.5 x 10-3)
= - log 2.5 - log 10-3
= - 0.398 + 3
Thus, pH = 2.602
Since, pH < 7, therefore the solution is acidic.
b) Given, [H3O+] = 1.8 x 10-12 M
Textbook: Introductory Chemistry
Author: Nivaldo J Tro
The answer to “For each [H30+], determine the pH and state whether the solution is acidic or basic.(a) [H3O+] = 0.0025 M(b) [H3O+] = 1.8 × 10?12 M(c) [H3O+] = 9.6 × 10?9 M(d) [H3O+] = 0.0195 M” is broken down into a number of easy to follow steps, and 35 words. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. The full step-by-step solution to problem: 99P from chapter: 14 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Since the solution to 99P from 14 chapter was answered, more than 265 students have viewed the full step-by-step answer. This full solution covers the following key subjects: acidic, basic, determine, solution, state. This expansive textbook survival guide covers 19 chapters, and 2045 solutions.