Plz anyone tell me to find out the oxidation number of PbSO4 , CaOCl2 , (Nh4)2SO4?
OXIDATION NUMBER
Answers:
In PbSO4 the Pb is +2 and the SO4 group is -2.
The O in SO4 is -2 so the sulphur must be +6 (the four oxygens add up to -8 and for the SO4 group to be -2 the sulphur must be +6)
The formula for CaOCl2 IS correct. The Ca is +2 and the OCl2 group -2 as O is usually -2 it would suggest that each chlorine is 0. This anomaly is because the OCl2 is known as a disproportionate ion (having too much chlorine).
In (NH4)2SO4 each NH4 group is +1 and the SO4 is -2.
So as each H = +1 the N is -3. The SO4 has the same oxidation numbers as in PbSO4 above.
In working out oxidation numbers we assume that certain elements have fixed numbers O is -2, Cl is -1, H is +1 and alkali metals like sodium and potassium are +1. The complete compound must add up to zero.
22
A compound doesn't have an oxidation number, but an element in a compound does.
For a simple ion, like Pb in PbSO4, it is the same as the ionic charge, ie +2.
Now, since O is always -2, the S must be +6 to make the whole compound zero.
I don't think that you have written the formula of the calcium compound correctly.
If you use O = -2, S = +6 and H = +1, then you should be able to work out the N in ammonium sulphate.
Pb II, S VI O -II, Ca II, Cl -I (in CaCl) and Cl I (in OCl), N -III, H I
I hope thats what u wanted.
BTW Gervald O can also be -I and -I//II (-1/2)
can we cry under water?
did I just see a shooting star over south yorkshire?
what does a crocodile do with the water it swallows during eating?
What states of matter are there other than solid, liquid and gas?
help plz!?
How intelligent are goldfish?
All clocks in the UK will be put back by one hour this weekend. Do other countries have similar time changes?
what is the mode of these numbers 2,5,6,3,2,8,9,10,2,3,1,17,20,2?
Answers:
In PbSO4 the Pb is +2 and the SO4 group is -2.
The O in SO4 is -2 so the sulphur must be +6 (the four oxygens add up to -8 and for the SO4 group to be -2 the sulphur must be +6)
The formula for CaOCl2 IS correct. The Ca is +2 and the OCl2 group -2 as O is usually -2 it would suggest that each chlorine is 0. This anomaly is because the OCl2 is known as a disproportionate ion (having too much chlorine).
In (NH4)2SO4 each NH4 group is +1 and the SO4 is -2.
So as each H = +1 the N is -3. The SO4 has the same oxidation numbers as in PbSO4 above.
In working out oxidation numbers we assume that certain elements have fixed numbers O is -2, Cl is -1, H is +1 and alkali metals like sodium and potassium are +1. The complete compound must add up to zero.
22
A compound doesn't have an oxidation number, but an element in a compound does.
For a simple ion, like Pb in PbSO4, it is the same as the ionic charge, ie +2.
Now, since O is always -2, the S must be +6 to make the whole compound zero.
I don't think that you have written the formula of the calcium compound correctly.
If you use O = -2, S = +6 and H = +1, then you should be able to work out the N in ammonium sulphate.
Pb II, S VI O -II, Ca II, Cl -I (in CaCl) and Cl I (in OCl), N -III, H I
I hope thats what u wanted.
BTW Gervald O can also be -I and -I//II (-1/2)
The answers post by the user, for information only, UKQnA.com does not guarantee the right.