Citations 5. Abstract The acid ionization constant, K a , of acetic acid and the base ionization constant, K b , of ammonia are determined easily and rapidly using a datalogger, a pH sensor, and a conductivity sensor. Cited By. This article is cited by 5 publications. Journal of Chemical Education , 96 6 , Journal of Chemical Education , 91 7 , Journal of Chemical Education , 90 6 , The K a and values have been determined for a great many acids and bases, as shown in Tables These can be used to calculate the pH of any solution of a weak acid or base whose ionization constant is known.
Calculate the pH of a 2. The K a for nitrous acid is 4. Step 1: List the known values and plan the problem. First, an ICE table is set up with the variable x used to signify the change in concentration of the substance due to ionization of the acid. Then the K a expression is used to solve for x and calculate the pH. The K a expression and value is used to set up an equation to solve for x. The quadratic equation is required to solve this equation for x. A large Kb value indicates the high level of dissociation of a strong base.
A lower pKb value indicates a stronger base. Another important point is pI. This is the isoelectric point. It is the pH at which a protein or another molecule is electrically neutral has no net electrical charge. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights.
Measure content performance. Develop and improve products. List of Partners vendors. Intro Lesson: a. Intro Lesson: b. Intro Lesson: c. Intro Lesson: d. Lesson: 1a. Lesson: 1b. Lesson: 2. Intro Learn Practice.
Do better in math today Get Started Now. Introduction to acid-base theory 2. Conjugate acids and bases 3. Strong and weak acids and bases 4.
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