A gardener can fix acidic soil by adding lime over time.
PKa = -log (Ka) = log [HPO4(2-)] - log[H+]^2 = - log(4.2×10^-13)
pH = - log [H+]
- log [H+]^2 = - 2 log [H+]
2pH = - log (4.2×10^-13) - log [HPO4(2-)]
2pH = - log (4.2×10^-13) - log (0.550)
pH = 6.32
Answer:
D)3
Explanation:
The trigonal planar atoms are: N and two Carbons (of COOH)