Answer: Electrolyte Solutions
A 2.200-g sample of quinone (C6H4O2) is burned in a bomb calorimeter whose total heat capacity is 7.854<span> kJ/°C. The temperature of the calorimeter increases from 23.44 to </span>30.57 °C<span>. </span>
HA -----> H(+) + A(-)
0,2-x.........x..........x
100% - 99,4% = 0,6% = 0,006
x = 0,6%×0,2 = 0,006 × 0,2 = 0,0012
HA --------------> H(+) + A(-)
0,2-x.....................x..........x
0,2-0,0012.....0,0012..0,0012
0,1988.............0,0012..0,0012
K = [H+][A-]/[HA]
K = (0,0012)^2/0,1988
K = 0,0000072434
pKa = -logK= -log0,0000072434 = 5,14
:)
Answer: Chemical Formula = COBr₂
Structural Formula = Attached Below
IUPAC Name = Carbonic Dibromide
Common Name = Bromophosgene
As we know Carbon has the tendency to form four covalent bonds, Oxygen can form two covalent bonds and Bromine can form a single bond. Keeping this in mind we can say that in given compound carbon is forming two single bonds with two bromine atoms and a double bond with oxygen atom. Therefore, the valencies of all elements in the given compound are satisfied and completed.