Answer:
D
Explanation:
We have to bear in mind that the acid is a weak acid. A weak acid does not dissociate completely in solution. We will have more concentration of undissociated acid than A^- and H3O^+ and OH^- in the system at equilibrium.
Being a weak acid, there is maximum concentration of water molecules followed by that of undissiociated acid.
Hence, for this solution, the concentration of ions in solution follows the order;
[H2O] > [HA] > [A-] ~ [H3O ] > [OH-]
Carbon - sp3 hybridization
Answer: The vapor pressure of the solution is 55.2 torr
Explanation:
and
where, x = mole fraction in solution
= pressure in the pure state
According to Dalton's law, the total pressure is the sum of individual pressures.
x = mole fraction =
Given : 299 g of toluene and 391 g of benzene.
moles of toluene =
moles of benzene=
Total moles = moles of solute (toluene) + moles of solvent (benzene) = 3.25 + 5.01 = 8.26
= mole fraction of benzene =
=mole fraction of toluene = (1-0.39) = 0.61
Thus the vapor pressure of the solution is 55.5 torr
Answer:
OF6
Explanation:
Oxygen and fluorine have almost the same electronegativity, so oxygen isn't able to donate enough electron density to fluorine to form OF6. Atomic size. There isn't enough room around an oxygen atom for six fluorine atoms.
:-befrank