Answer:
4+3=3+3+2
Explanation:
4Ni(oh)3+3pb(so4)2=3pb(oh)4+2Ni2(so4)3
Solution;
The gas is at STP;
Where; T = 273 K , P = 1 atm
We know that 1 mole of a gas at STP occupies a volume of 22.4 liters .
V1/n1 = V2/n2
n2 = (V2/V1) n1
n2 = (2 l/22.4 l)(1 mole)
n2 = 0.0893 moles
But 1 mole of a compound has 6.022 × 10^23 molecules
Thus, number of molecules = 0.0893 moles × 6.022 ×10^23 molecules
= 5.378 × 10^22 molecules.
Upthrust = loss in weight = 0.82 - 0.059 = 0.761 Kg
upthrust = weight of the displaced fluid = 0.79*Vg where Vg is the volume of the piece of wood
Therefore:
0.761 = 0.79 Vg
Vg = 0.96329
Density of wood (sg of wood) = mass / volume
density of wood = 0.82 / 0.96329 = 0.85
At first you need to draw<span> the lewis dots around each atom that you have.
Next thing that you should do is to connect the dots of </span><span>HOClO and do not forget that each dot connect with one lone electron.
Then draw valence of each electron and connect them with a line.
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