Answer is: the boiling point of the resulting solution of sucrose is 100.42°C.
m(H₂O) = 15.2 g ÷ 1000 g/kg = 0.0152 kg.
m(C₁₂H₂₂O₁₁) = 4.27 g.
n(C₁₂H₂₂O₁₁) = m(C₁₂H₂₂O₁₁) ÷ M(C₁₂H₂₂O₁₁).
n(C₁₂H₂₂O₁₁) = 4.27 g ÷ 342.3 g/mol.
n(C₁₂H₂₂O₁₁) = 0.0125 mol.
b(solution) = n(C₁₂H₂₂O₁₁) ÷ m(H₂O).
b(solution) = 0.0125 mol ÷ 0.0152 kg.
b(solution) = 0.82 m.
ΔT = b(solution) · Kb(H₂O).
ΔT = 0.82 m · 0.512°C/m.
ΔT = 0.42°C.
Tb = 100°C + 0.42°C = 100.42°C.
Hope this helps!
It is called deposition.
Bcoz,
Sublimation - transformation from solid to gas,
Condensation - gas to liquid transformation
Vaporization - liquid to gas transformation
Answer:
In a fossil fuel power plant the chemical energy stored in fossil fuels such as coal, fuel oil, natural gas or oil shale and oxygen of the air is converted successively into thermal energy, mechanical energy and, finally, electrical energy.
Among the transition metal elements, Manganese and Zinc have a slight lowering of electronegativities. The reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. Both Manganese and Zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. Although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. Hence, the electronegativity (or the ability to attract electrons) is lessened.
