Which of the following solutions is a buffer?

check all that apply.
a. a solution made by mixing 100 ml of 0.100 m ch3cooh and 500 ml of 0.100 m naoh
b. a solution made by mixing 100 ml of 0.100 m ch3cook and 50 ml of 0.100 m kcl
c. a solution made by mixing 100 ml of 0.100 m ch3cooh and 50 ml of 0.100 m hcl
d. a solution made by mixing 100 ml of 0.100 m ch3cooh and 50 ml of 0.100 m naoh

D. a solution made by mixing 100 mL of 0.100 M CH3COOH and 50 mL of 0.100 M NaOH

Explanation:

Buffer solutions are the solutions which can resist the change in the pH up to some extent.

The pH of a buffer solution can be measured by the equation known as Henderson–Hasselbalch equation.

pH=pKa+log[base]/[acid]

Buffer solutions are the solutions of either weak acid and conjugate base of it or weak base and conjugate acid of it.

Hence, a weak acid and a strong base can result in weak acid and it's conjugate and can acts as a buffer.

Option D is correct.

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'