EssenceBlocker4352 EssenceBlocker4352
  • 21-10-2020
  • Chemistry
contestada

You have a carbonate buffer with pH 10.3 and a concentration of 2.0 M. What is the buffer capacity of 100 mL of the buffer against 3.0 M CsOH?

Respuesta :

Xema8 Xema8
  • 23-10-2020

Answer:

Explanation:

pH = 10.3

[ H] = 10⁻¹⁰°³

= 5 x 10⁻¹¹ M

concentration of CsOH C = 3 M

pKa of carbonate = 6.35

Ka = 10⁻⁶°³⁵ = 4.46 x 10⁻⁷

Buffer capacity = 2.303 x C x Ka x [ H⁺] / ( Ka + [ H⁺]² )²

= 2.303 x 3 x 4.46 x 10⁻⁷  x 5 x 10⁻¹¹ / ( 4.46 x 10⁻⁷  + 25 x 10⁻²² )²

= 154 x 10⁻¹⁸ / 19.9 x 10⁻¹⁴

= 7.74 x 10⁻⁴ .

Answer Link

Otras preguntas

A graphic designer creates an image for a t-shirt that measures 8 inches tall and 10 inches wide. She can use this image for small and medium t-shirts, but she
can someone PLEASE help?? i would really really appreciate it!!!!
What allowed the U.N. to intervene when North Korea invaded South Korea? a. The Chinese had entered the war to support North Korea. b. The North Koreans had mov
41. Which of the following is the denotation of the word inexpensive?A. budgetB. discountedC. low-pricedD. worthless​
Someone please help!!! Due tonight, I’ll give brainliest!!!
how many grams of cacl2 would be dissolved in 1.0L of a 0.100M solution of cacl2
PLEASE HELPPP NEED THIS ANSWER BY TONIGHT!!
What is the total current through the circuit? 6 ohms 9V 9 ohms 12 ohms​
What is earths inferred interior pressure,in millions of atmospheres, at a depth of 3500 kilometers
whats the value of x