AP Chemistry
8.1 Introduction to Acids and Bases
Water autoionizes according to the following equation:
\[ 2\,\text{H}_2\text{O}(l) \rightleftharpoons \text{H}_3\text{O}^+(\text{aq}) + \text{OH}^-(\text{aq}) \]
At an elevated temperature of \(45\ ^\circ\text{C}\), the value of the autoionization constant, \(K_w\), is \(4.0 \times 10^{-14}\). What is the hydronium ion concentration, \([\text{H}_3\text{O}^+]\), in a sample of pure water at this temperature?
\[ 2\,\text{H}_2\text{O}(l) \rightleftharpoons \text{H}_3\text{O}^+(\text{aq}) + \text{OH}^-(\text{aq}) \]
At an elevated temperature of \(45\ ^\circ\text{C}\), the value of the autoionization constant, \(K_w\), is \(4.0 \times 10^{-14}\). What is the hydronium ion concentration, \([\text{H}_3\text{O}^+]\), in a sample of pure water at this temperature?
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Chemistry? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course