HelenaPierce9136 HelenaPierce9136

12-03-2024
Chemistry

contestada

For the diprotic weak acid H2A, a1=3.5×10⁻⁶ and a2=7.7×10⁻⁹. What is the pH of a 0.0800 M solution of H2A?

A) 3.22
B) 4.78
C) 5.92
D) 6.74

Respuesta :

Otras preguntas

A coin is flipped 70 times and lands on tails 28 times. What is the relative frequency of the coin landing on tails? 20% 30% 40% 50%

Evaluate 2x-4y for x = 2 and y = 4.

The outer layer of a cell that acts as a gatekeeper to a cell is the _____.

. In England, people associate the acceptance of their Bill of Rights with the reign of?

Which was NOT a reason the North began to lose interest in the Southern Reconstruction by the early 1870s? (a) Southern intransigence was increasingly frustrati

If the volume for 3-D polyhedra A is 400 cm3 and the volume for 3-D polyhedral B is 800 cm3. How many times bigger is the volume of pyramid B than pyramid A? 20

Fill in the blank: A synonym for "faithfulness" is ____________________________

When is the universal theme of a story often revealed? a. at the resolution of the story, when the reader can see how the story ends b. in the middle of the s

A square has a perimeter of 8 cm. What is its area?

Delia measured her bathtub to be 2 meters long. What is an equivalent measurement?