reaction & stoich (H)
CH4 + 2O2 -> 2H2O + CO2 + heat
type of reaction
combustion!
The peaks in photoelectron spectroscopy (PES) represent?
# of electron in a sublevel
name TiO
titanium (II) oxide
When Q=Keq, the reaction is at...
equilibrium
What is equal to 0 at equilibrium?
ΔG!
_KNO3 -> _KNO2 + _O2
combined total of all coefficients
5 (2+2+1)
Electronegativity increases...
SF4 molecular geometry
seesaw
The rate constant of a first-order reaction is 0.04307/minutes. What is the half-life of the reaction in days?
0.01117 days
Work:
t1/2 = ln(2)/k
k = 0.04307
t1/2 = 16.09 minutes = 0.01117 days
when a reaction is exothermic, the bonds in the products are _____ than reactant bonds
stronger/more stable
potassium oxide + calcium chlorate -> ?
predict products (include coefficients)
calcium oxide + 2 potassium chlorate
CaO + 2KClO3
What sign (+/-) charge results in an atomic radius larger than the neutral atom of the same element?
negative
more soluble in water
BeO or MgS
BeO
2D(g) ⇌ E(g) fast equilibrium
E(g) + F(g) -> 2G(g) slow
What is the rate law for the mechanism above?
Rate=k[D]2[F]
what is a common reason for a process to be under kinetic control
high activation energy
_(?)_ grams of oxygen (O2) react completely with 4.00 g hydrogen (H2) in the formation of water
31.7 g
Order the sublevels, F, S, P, D, in order of DECREASING relative shielding strength
S, P, D, F
strongest IMF in CH3Cl
(options: LDF, dipole-dipole, H-bond, metallic bond, ionic bond, covalent bond)
dipole-dipole
2A(g) + B(g) ⇌ 2C(g) ∆H=-55 kJ/molrxn.
Kc=27.3 at 273 K
If 1.0 mol of each gas were injected into the 2L container at 273 K, what would be the relationship between [A] and [B] and [C] at equilibrium?
[A] =/>/< [B] =/>/< [C]
[A] < [B] < [C]
Work:
Q = [0.5]2/([0.5]2[0.5]2) = 1/0.5= 2
K >Q, therefore product will be made.
Due to stoichiometry, [A] will decrease twice as fast, hence [A] < [B] < [C]
when does delta G knot = 0
when K = 1