If a buffer solution is 0.540 m in a weak acid ( k a = 8.0 × 10 − 6 ) and 0.230 m in its conjugate base, what is the ph?

4.7

Explanation:

Given data

We can calculate the pH of a buffer system using the Henderson-Hasselbalch's equation.

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

pH = -log (8.0 × 10⁻⁶) + log (0.230 M/0.540 M)

pH = 4.7

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.