Covalent bond is when there is relatively less difference in electronegativity of constituent atoms. On the other hand, ionic bond is formed when there is large difference in electronegativity of constituent atoms.
In present case, electronegativity of F is 3.98, electronegativity of C is 2.55, electronegativity of tin is 1.96 and electronegativity of potassium is 0.82.
Here, since the electronegativity difference is minimum in case of C-F, so covalent bond will be preferentially with carbon.
It must also be noted that neon is an inert gas, hence it will not form bond with F.
Cooking energy to our cars liquid fuels
Toluene is aromatic organic compound and is derived from benzene by substituting on H with methyl group. The molecular formula of Toluene is C₇H₈.
When Toluene is subjected to combustion reaction it produces carbon dioxide and water. The balance chemical reaction for combustion of toluene is as follow,
C₇H₈ + 9 O₂ → 7 CO₂ + 4 H₂O
The first-order rate constant for the decomposition of N2O5
, 2N2O5(g)--> 4NO2(g)+O2(g)
at 70 C is 6.82x10^-3s-1. Suppose we start with 2.74×10−2 mol of N2O5(g) in a volume of 2.3L .
How many moles of N2O5 will remain?
The Integrate rate law can be shown as:
K is constant =
t is time
[A_0] is the intial mol
Molarity = [A_0] = n / V (liter) = 0.0274 /2.3 L = 0.0119 M
1243 .76 = log (0.0119) – log [A]
Thus , remaining amount of solute after 7 minute is 0.0072 mol /L