Answer:
Hence the<u> ions per mole</u> are:
![Li^{+}= 2 ions](https://tex.z-dn.net/?f=Li%5E%7B%2B%7D%3D%202%20ions)
![SO_{3}^{2-}(aq)= 1 ions](https://tex.z-dn.net/?f=SO_%7B3%7D%5E%7B2-%7D%28aq%29%3D%201%20ions)
In one mole of Li2SO3 , the number of the atoms are
![N_{a}=6.022\times 10^{23}](https://tex.z-dn.net/?f=N_%7Ba%7D%3D6.022%5Ctimes%2010%5E%7B23%7D)
Explanation:
The formula of lithium sulfite is Li2SO3.
![Li_{2}SO_{3}](https://tex.z-dn.net/?f=Li_%7B2%7DSO_%7B3%7D)
It contain Li+ and SO3(2-) ions.This can be represented by :
![Li_{2}SO_{3}(s)\rightarrow 2Li^{+}(aq) +SO_{3}^{2-}(aq)](https://tex.z-dn.net/?f=Li_%7B2%7DSO_%7B3%7D%28s%29%5Crightarrow%202Li%5E%7B%2B%7D%28aq%29%20%2BSO_%7B3%7D%5E%7B2-%7D%28aq%29)
Hence one mole of Li2SO3 will give 2 Li+ ions and 1 SO3 (2-) ion.
Hence the<u> ions per mole</u> are:
![Li^{+}= 2 ions](https://tex.z-dn.net/?f=Li%5E%7B%2B%7D%3D%202%20ions)
![SO_{3}^{2-}(aq)= 1 ions](https://tex.z-dn.net/?f=SO_%7B3%7D%5E%7B2-%7D%28aq%29%3D%201%20ions)
Number of atoms in lithium sulfite depends upon the<u> mass of the Li2SO3 present</u> .
Li2SO3 = 93.94 g/mole
This mass is equal to 1 mole of Li2SO3
Now<u> 1 mole</u> of any substance contain Na atoms . This is known as Avogadro Number.
![N_{a}=6.022\times 10^{23}](https://tex.z-dn.net/?f=N_%7Ba%7D%3D6.022%5Ctimes%2010%5E%7B23%7D)
Hence , if 1 mole of Li2SO3 is present then it contains Na atoms
If other then 1 mole present then number of atoms are calculated by:
![Number\ of\ Atoms=Moles\times (N_{a})](https://tex.z-dn.net/?f=Number%5C%20of%5C%20Atoms%3DMoles%5Ctimes%20%28N_%7Ba%7D%29)
Here n = number of moles
if the mass of the compound is given then first calculate the number of moles.
Answer:
Explanation:
The algebraic sum of all the oxidation numbers of all atoms in a neutral compound is zero.
In order to know the formula of the negative Sulfur ion in pyrite, we must determine its oxidation state.
Let us make the make the oxidation number of sulfur = x
Therefore, FeS₂:
+2 +2x = 0
+2 = -2x
x = -1
The formula of the negative ion is S⁻
Hey there!
<span>What activates a convection current, starting the flow of a fluid ?
Answer: </span>
<span>D. Temperature differences in the mantle
</span><span>
Hope this helps
Have a great day (:
</span>
Answer : The ratio of hydrogen and oxygen in water is, (2:1)
Explanation :
As we know that the chemical formula of water is,
.
In
, there are 2 atoms of hydrogen and 1 atom of oxygen.
As we are given that the volume of water is, 2 L. So, there is no matter what is the volume of water that means there is no role of volume of water.
The ratio of hydrogen and oxygen in water is, (2:1)
Thus, in 2 L volume of water, the ratio of hydrogen and oxygen in water is also same that is, (2:1)
Answer:
for the force that sent the person forward, there is an equal force pushing back on the skateboard