What is the number of valence electron of (Na). ?
1 answer:
You might be interested in
Answer:
pH = 5.47
Explanation:
The equilibrium that takes place is:
HIO ↔ H⁺ + IO⁻
Ka = = 2.3 * 10⁻¹¹
At equilibrium:
- [HIO] = 0.5 M - x
- [H⁺] = x
- [IO⁻] = x
<u>Replacing those values in the equation for Ka and solving for x:</u>
Then [H⁺]=3.39 * 10⁻⁶, thus pH = 5.47
Answer: 4. and
Explanation:
a) The given reaction is
As the mass on both reactant and product side must be equal:
As the atomic number on both reactant and product side must be equal:
b)
Total mass on reactant side = total mass on product side
15 =15 + x
x = 0
Total atomic number on reactant side = total atomic number on product side
8 = 7 + y
y = 1