3p2
The second subshell is p and there are still 2 electrons to be placed
Answer:
Explanation:
Mole = no. Molecules/6.02×10^23
Mole = (2.35×10^24)/(6.02×10^23)
Mole = 3.9mole
I believe the correct answer from the choices listed above is the third option. It is amino acid that is not an example of a polymer. It <span> is a large molecule, or macromolecule, composed of many repeated subunits. Hope this answers the question.</span>
8.98
×
N
A
cobalt atoms
Explanation:
N
A
,
Avogadro's number
specifies
6.0221
×
10
23
individual particles. It is simply another collective number like a dozen, or a score, or a gross.
N
A
has the property that
6.0221
×
10
23
individual cobalt atoms has a mass of
58.93
⋅
g
. How did I know that? Did I have it memorized?
So the quantity is
≈
54
×
10
23
cobalt atoms.
Answer:
1) Enthalpy of reaction per gram of quick lime or calcium oxide is -6.25 kJ/g.
2)kilo Joules of energy is produced when 1 Tonn of slaked lime is produced.
Explanation:
Enthalpy of reaction = ΔH = -350 kJ/mol
1 mole of calcium oxide = 56 g/mol
1 ) Enthalpy of reaction per gram of quick lime or calcium oxide:
2) Mass of slake lime = 1 Tonn = 1,000,000 g
Moles of slaked lime =
According to reaction, on formation of 1 mol of slaked lime 350 kilo Joules of energy is produced.
Then energy produced when 13,513.51 moles of slaked lime is produced:
kilo Joules of energy is produced when 1 Tonn of slaked lime is produced.