Answer:
[Cl⁻] = 0.016M
Explanation:
First of all, we determine the reaction:
Pb(NO₃)₂ (aq) + MgCl₂ (aq) → PbCl₂ (s) ↓ + Mg(NO₃)₂(aq)
This is a solubility equilibrium, where you have a precipitate formed, lead(II) chloride. This salt can be dissociated as:
PbCl₂(s) ⇄ Pb²⁺ (aq) + 2Cl⁻ (aq) Kps
Initial x
React s
Eq x - s s 2s
As this is an equilibrium, the Kps works as the constant (Solubility product):
Kps = s . (2s)²
Kps = 4s³ = 1.7ₓ10⁻⁵
4s³ = 1.7ₓ10⁻⁵
s = ∛(1.7ₓ10⁻⁵ . 1/4)
s = 0.016 M
Dalton is 1st, he made the atomic theory.
JJ Thomson is 2nd, he made the plum pudding model of the atom.
Earnest Rutherford is 3rd, he disproved the plum pudding model with alpha particles being shot at gold.
Bohr is 4th, he also made another model after Rutherford
C is your answer. This is simple chemistry history, your teacher should have taught you this
Answer:
The actual free energy = 78.54 X 10⁻² J
Explanation:
Given standard free energy = 23.8 kJ/mol
Free energy due to the presence of fructose 1,6-bisphosphate (1.4 X 10⁻⁵ M)
= 1.4 X 10⁻⁵ M * (23800 J/mol)
= 33.32 X 10⁻² J
Free energy due to the presence of glyceraldehyde 3-phosphate (3 X 10⁻⁶ M)
= 3 X 10⁻⁶ M * (23800 J/mol)
=7.14 X 10⁻² J
Free energy due to the presence of dihydroxyacetone phosphate (1.6 x 10⁻⁵M)
= 1.6 x 10⁻⁵M * (23800 J/mol)
= 38.08 X 10⁻² J
The actual free = 33.32 X 10⁻² J + 7.14 X 10⁻² J + 38.08 X 10⁻² J
The actual free energy = 78.54 X 10⁻² J