miayadeliss4772 miayadeliss4772

26-04-2018
Chemistry

contestada

What is the ph of a solution that is 0.50 m in propanoic acid and 0.40 m in sodium propanoate. (ka for propanoic acid = 1.3 x 10-5)?

Respuesta :

tаskmasters tаskmasters

05-05-2018

The pH is given by the Henderson - Hasselbalch equation:
              pH = pKa + log([A-]/[HA])
              pH = -log(1.3 x 10^-5) + log(0.50/0.40)
              pH = 4.98
The answer to this question is 4.98.

Answer Link

Otras preguntas

Actin makes up cytoskeleton fibers called _____.

A motorcyclist drives from a to b with the uniform speed of 30 km/h-1 and returns back with the speed of 20 km/h-1.find the average speed?

Drug use can cause the spread of diseases. Please select the best answer from the choices provided. T F

a particle whose speed is 50 m/sec moves along the line from A(2,1) to B (9,25)

_____________ is mobility in social class which is attributable to changes in social structure of a society at the larger social, not personal level.

Which best describes the food sources of American Indians in the Northeast and Southeast in the 1500s?

Which of the following is key to a successful workplace interview? sending a follow-up letter carrying extra photos of yourself bringing both a pen and a

The foreign purchases, interest rate, and real-balances effects explain why the select one: a. aggregate demand curve is downward-sloping. b. aggregate demand c

given that s=3/t-3, express t in terms of s

Which cytoskeleton protein helps a cell maintain its shape?