To solve this problem you would add 3/4 to 7 1/3.
3 22
4 3
9 88
12 12
97
12
8 1/12
The final answer would be 8 and 1/12
Answer:
a. Ksp = 4s³
b. 5.53 × 10⁴ mol³/dm⁹
Explanation:
a. Obtain an expression for the solubility product of AB2(S),in terms of s.
AB₂ dissociates to give
AB₂ ⇄ A²⁺ + 2B⁻
Since 1 mole of AB₂ gives 1 mole of A and 2 moles of B, we have the mole ratio as
AB₂ ⇄ A²⁺ + 2B⁻
1 : 1 : 2
Since the solubility of AB₂ is s, then the solubility of A is s and that of B is 2s
So, we have
AB₂ ⇄ A²⁺ + 2B⁻
[s] [s] [2s]
So, the solubility product Ksp = [A²⁺][B⁻]²
= (s)(2s)²
= s(4s²)
= 4s³
b. Calculate the Ksp of AB₂, given that solubility is 2.4 × 10³ mol/dm³
Given that the solubility of AB is 2.4 × 10³ mol/dm³ and the solubility product Ksp = [A²⁺][B⁻]² = 4s³ where s = solubility of AB = 2.4 × 10³ mol/dm³
Substituting the value of s into the equation, we have
Ksp = 4s³
= 4(2.4 × 10³ mol/dm³)³
= 4(13.824 × 10³ mol³/dm⁹)
= 55.296 × 10³ mol³/dm⁹
= 5.5296 × 10⁴ mol³/dm⁹
≅ 5.53 × 10⁴ mol³/dm⁹
Ksp = 5.53 × 10⁴ mol³/dm⁹
Answer:
In molecular hydrogen, H2H2, the two hydrogen atoms are joined by a nonpolar covalent bond. There’s a lot to unpack in that term, so let’s get started.
What is a covalent bond? A covalent bond happens when two atoms share electrons. (Compare it to an ionic bond, which happens when one atom loses electrons to the other atom.) In a single covalent bond, each atom shares one electron with the other atom, so there are a pair of electrons that simultaneously belong to both atoms.
Sometimes the atoms share electrons evenly; sometimes they don’t. If one of the atoms has a greater attraction for electrons than the other atom does, the electrons are drawn more strongly to one side of the bond than to the other. We call that a polar covalent bond. But in the case of H2H2, where both atoms are exactly the same, the electrons are evenly distributed. That’s called a nonpolar covalent bond.
If you want to get even more technical, you could say that the bond between the hydrogen atoms is a sigma bond. Covalent bonds happen when atoms’ orbitals overlap. (Orbitals are the regions where electrons are most likely to be found.) A sigma bond is formed when the area of overlap is directly between the two atomic centers. (Orbitals can also overlap side-to-side, which is called a pi bond, but that’s not what happens in a hydrogen molecule.)
You will have divided 50200 by 1000000 which 0.0502