Answer:
NH4Cl > Li2SO4 > CoCl3
Explanation:
Let us recall that the freezing point depression depends on the molality of the solution and the number of particles present.
Let us also recall that freezing point depression is a colligative property. It depends on the number of particles present in solution.
Usually, the more the number of particles present, the lower the freezing point. Hence, NH4Cl which has only two particles will have the highest freezing point while CoCl3 which has four particles will have the lowest freezing point.
Answer:
C₆H₁₂O₆ and O₂
Explanation:
To know which option is correct, it important that we know the concepts of chemical equation .
A chemical equation gives us an expression of a chemical reaction in terms of symbols and formula. There are two sides to every equation. The side bearing the reactant and the side bearing the product.
The reactant is located on the left side and the product is located on the right side.
Reactant —> Product
With the above information, let us answer the question given above.
6CO₂ + 6H₂O —> C₆H₁₂O₆ + 6O₂
The products are located on the right side of the equation.
Thus, the products of the reaction is C₆H₁₂O₆ and O₂
Answer:
1) n-Hexane. 2) 2-Methyl pentane(IUPAC name) or Isohexane(common name). 3) 2,2-Dimethylbutane(IUPAC name) or Neohexane(common name). 4) 3-Methylpentane
Explanation:
Answer:
A is oxidation . B is reduction
Explanation:
A will be oxidation agent because there is gain of
electrons
B will be reducing agent because there is loss of
electrons.
Lattice energy = -820 kJ/mole
Heat of solution = +22.6 KJ/mole
Lattice breakdown is and endothermic reaction during the
formation of solution
And hydration is an exothermic reaction as ions interact
with solvent molecules
By using the formula,
Enthalpy of solution = Lattice energy + hydration energy
Now put the values and calculate,
+22.6 kj/mole = + 820 kj/mole + hydration energy
Hydration energy = 22.6 Kj/mole – 820 Kj/mole
Hydration energy= -797.4 Kj/mole
