Nobel gasses already have the octect in their valence energy level. Noble gasses can be found in family 18. These gases include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and lastly Ununoctium (Uuo)!
- Miriam
I believe it’s 23 as there are 23 individual atoms present in this compound.
N=m/M
n=118/58.93=2
Answer: 2 moles
This is a perfect example of what this person is saying
Answer:
pH = 6.964 which rounds to 7.0 if 2 sig figs
Explanation:
Ka₁ * Ka₂ = x
2.4x10⁻⁴ * 4.9x10⁻¹¹ = 1.176x10⁻¹⁴
√1.176x10⁻¹⁴ = 1.084435337x10⁻⁷
pH= -log[H⁺]
pH= -log[1.084435337x10⁻⁷]
pH= 6.964796339