Based on your understanding, what is Bigbang Thoery?
1 answer:
You might be interested in
Answer:
The answer to your question is: kc = 6.48
Explanation:
Data
Given Molecular weight
CaO = 44.6 g 56 g
CO₂ = 26 g 44 g
CaCO₃ = 42.3 g 100 g
Find moles
CaO 56 g ---------------- 1 mol
44.6 g -------------- x
x = (44.6 x 1) / 56 = 0.8 mol
CO₂ 44 g ----------------- 1 mol
26 g ---------------- x
x = (26 x 1 ) / 44 = 0.6 moles
CaCO₃ 100 g --------------- 1 mol
42.3g -------------- x
x = (42.3 x 1) / 100 = 0.423 moles
Concentrations
CaO = 0.8 / 6.5 = 0.12 M
CO₂ = 0.6 / 6.5 = 0.09 M
CaCO₃ = 0.423 / 6.5 = 0.07 M
Equilibrium constant =
Kc = [0.07] / [[0.12][0.09]
Kc = 0.07 / 0.0108
kc = 6.48
Explanation: Lewis dot structures are the structures which represent the valence electrons of an atom. The dots in the structure are considered as the valence electrons.
First 18 elements of the periodic table are Hydrogen(H), Helium (He), Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), Neon(Ne), Sodium (Na), Magnesium (Mg), Aluminium (Al), Silicon (Si), Phosphorous (P), Sulfur (S), Chlorine (Cl) and Argon(Ar).
The valence electrons are the electrons which are present in the outermost shell of an atom. The electronic configuration of the elements are:
Hydrogen (H) = ; Valence electrons = 1
Helium (He) = ; Valence electrons = 2
Lithium (Li) = ; Valence electrons = 1
Beryllium (Be) = ; Valence electrons = 2
Boron (B) = ; Valence electrons = 3
Carbon (C) = ; Valence electrons = 4
Nitrogen (N) = ; Valence electrons = 5
Oxygen (O) = ; Valence electrons = 6
Fluorine (F) = ; Valence electrons = 7
Neon (Ne) = ; Valence electrons = 8
Sodium (Na) = ; Valence electrons = 1
Magnesium (Mg) = ; Valence electrons = 2
Aluminium (Al) = ; Valence electrons = 3
Silicon (Si) = ; Valence electrons = 4
Phosphorous (P) = ; Valence electrons = 5
Sulfur (S) = ; Valence electrons = 6
Chlorine(Cl) = ; Valence electrons = 7
Argon (Ar) = ; Valence electrons = 8
- Elements hydrogen and helium belong to period 1 of the period table, so the lewis dot structures will have maximum of 2 electrons
- Elements from lithium to neon belong to period 2 and the lewis dot structures will have maximum of 8 electrons.
- Elements from sodium and argon belong to the period 3 of the periodic table, and will have maximum of 8 electrons in their lewis dot structures.
Lewis dot structures are attached below.
