V=0,1 l=100 ml
m=p*V=0,8787*100=87,87g
Answer:
Highest boiling point - 0.43 m Urea
Second highest boiling point - 0.20 m NiSO4
Third highest boiling point - 0.19 m NH4I
Lowest boiling point - 0.17 m NH4NO3
Explanation:
We know that;
ΔT = kb m i
Where;
ΔT = boiling point elevation
kb = boiling point constant
m = molality of the solution
i = Van't Hoff factor
For NiSO4 , NH4I and NH4NO3 , the Van't Hoff factor, i = 2
But for Urea, the Van't Hoff factor, i = 1
We also have to consider both the values of the molality and Van't Hoff factor , knowing that a higher molality and a higher Van't Hoff factor leads to a higher ΔT and consequently a higher boiling point.
This facts above account for the arrangement of substances shown in the answer.
Answer:
Detail is given below
Explanation:
Differences:
Ionization involves the formation of ions while in dissociation substance are break into atoms, ions or molecules.
In ionization atoms and molecules gain positive or negative charge.
While in dissociation positive and negative ions are not essentially formed substance could be break into neutral small particles.
Ionization occur in covalent compounds while dissociation occur in ionic compound.
Ionization example:
Cl + e⁻ → Cl⁻
Dissociation example:
NaCl → Na⁺ + Cl⁻
Here sodium and chloride ions are formed but in sodium chloride these ions were already present.
Another example:
N₂O₄ → 2NO₂
Phosphorus has 5 valence
valence electrons is located to their group#
yes because of TAVE available valence electrons