Not A not D, pretty sure not E, I don’t think it’s B so I think it’s C. Hope this is correct
Answer:
is larger
Explanation:
, where is the acid dissociation constant.
For a monoprotic acid e.g. HA, and
So, clearly, higher the value , lower will the the
In this mixture, at equilibrium, will be constant.
of HF is grater than of HCN
Hence,
So, is larger
<span>3 AgNO3 + FeCl3 = Fe(NO3)3 + 3 AgCl
moles AgNO3 = 18.0 g/ 169.87 g/mol=0.106
moles FeCl3 required = 0.106/3=0.0353
mass FeCl3 = 162.206 g/mol x 0.353 mol=5.73 g
mass FeCl3 in excess = 32.4 - 5.73 =26.7 g.
26.7 gram of excess reactant remain after the reaction is over</span>
Ice floats because it is about 9% less dense than liquid water. ... The heavier water displaces the lighter ice, so ice floats to the top. One consequence of this is that lakes and rivers freeze from top to bottom, allowing fish to survive even when the surface of a lake has frozen over