I think it’s C but I’m not sure
D) light is reflecting in the direction indicated by T.
Explanation:
Percentage composition of oxygen = (80/134) * 100% = 59.7%.
<span>You use the Henderson - Hasselbalch equation
pH = pKa + log ([salt]/[acid])
pKa = -log (8.2*10^-5) = 4.081
pH = 4.081 + (0.590/0.190)
pH = 4.081 + log 3.105
pH = 4.081 + 0.49206
pH = 4.573</span>
