The equilibrium constant for the reaction C 6H 5COOH(aq) + CH 3COO –(aq) C 6H 5COO –(aq) + CH 3COOH(aq) is 3.6 at 25°C. If K a for CH 3COOH is 1.8 × 10 –5, what is the acid dissociation constant for C 6H 5COOH?

Compare and contrast physical changes with chemical changes.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.