A polar covalent bond is a specific type of covalent bond, where the distribution or the sharing of valence electrons among the atoms involved in the bond are not the same and or equal. There is a greater pull of electron density to one atom than that of the other causing atoms to experience a partial positive and negative charge.
The electronegativity difference is typically large between the atoms that show polar bonding.
Answer:
electron and ignore this woejdnks
Answer:
1 mol contains 6.02 x 10^23 molecules. So 0.25 mols will contain 0.25 x 6.02 x 10^23 molecules.
Explanation:
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Answer:
(C) Mass of KCl(s), mass of H20, initial temperature of the water, and final temperature of the solution
Explanation:
molar enthalpy of solution of KCl(s) is heat evolved or absorbed when one mole of KCl is dissolved in water to make pure solution . The heat evolved or absorbed can be calculated by the following relation.
Q = msΔt where m is mass of solution or water , s is specific heat and Δt is change in temperature of water .
So data required is mass of water or solution , initial and final temperature of solution , specific heat of water is known .
Now to know molar heat , we require mass of solute or KCl dissolved to know heat heat absorbed or evolved by dissolution of one mole of solute .