Benzene is the simplest example of the aromatic compound
Firstly, we want to explain what is the meaning of aromaticity?
the aromaticity is called on any compound which has cyclic shape and has a resonance. Resonance is delocalization of the electrons (which form the double bond) in the molecules, in other words, the double bond moves through the compound by the movement of electrons which leads to increasing the stability of the compound by this process which called resonance. The resonance may occur in open or cyclic compounds, and if it occurs in cyclic compounds, these compounds are called aromatic compounds. So, the benzene considered to be the simplest aromatic compound where it is not only has a resonance in a cyclic ring but also it was the first aromatic compound discovered and also, the most common aromatic compounds are derivatives of it (benzene).
Erica is likely to use reverse osmosis process.it is the method used in the industry to treat water in oil and gas industry .or ultra filtration method is also employed
Answer:
0.1 liters of NaOH.
Explanation:
When the acid solution is neutralized we have:
Where:
: is the number of moles of the acid
: is the number of moles of the base
: is the concentration of the acid
: is the concentration of the base = 0.1 M
: is the volume of the acid = 10000 L
: is the volume of the base =?
The concentration of the acid can be calculated from the pH:
![pH = -log([H^{+}])](https://tex.z-dn.net/?f=%20pH%20%3D%20-log%28%5BH%5E%7B%2B%7D%5D%29%20)
![[H^{+}] = 10^{-pH} = 10^{-6} M](https://tex.z-dn.net/?f=%20%5BH%5E%7B%2B%7D%5D%20%3D%2010%5E%7B-pH%7D%20%3D%2010%5E%7B-6%7D%20M%20)
Now, we can find the volume of the base:
Therefore, the amount of NaOH needed to neutralize the solution is 0.1 liters.
I hope it helps you!
1. Gypsum has the formula as CaSO₄.2H₂O<span>. Hence, CaSO₄ is bound with two H₂O. CaSO₄ has 1 Ca atom, 1 S atom and 4 O atoms. 2H₂O have 4 H atoms and 2 O atoms.
Hence,
total Ca atoms = 1
total S atoms = 1
total O atoms = 4 + 2 = 6
total H atoms = 4
total number of atoms = 1 + 1 + 6 + 4 = 12
</span>2. Cellulose has the formula as C₆H₇O₂(OH)₃. But there are 2 molecules.<span> Hence, to find total atoms in each element, number of atoms should be multiplied by 2 .The elements of the cellulose are C, H, and O.
Hence,
total C atoms = 6 x 2 = 12
total O atoms = (2 + 3) x 2 = 10
total H atoms = (7 + 3) x 2 = 20
total number of atoms = 12 + 10 + 20 = 42
</span>
3. The formula of the antiperspirant is Al₂Cl(OH)₅<span>. It has Al, Cl, O and H as the elements. Hence, the number of atoms in each element can be found as follows;
total Al atoms = 2
total Cl atoms = 1
total H atoms = 1 x 5 = 5
total O atoms = 1 x 5 = 5
total number of atoms = 2 + 1 + 5 + 5 = 13</span>
Answer:
6.71 moles of O₂
Explanation:
When the reactans are oxygen and aluminum, you produce aluminum oxide by this reaction:
4 Al + 3O₂ → 2Al₂O₃
The stoichiometry indicates that 4 moles of Al reacts with 3 moles of O₂.
Let's make a rule of three:
If 4 moles of Al reacts with 3 moles of O₂
Then, 8.95 moles of Al will react with (8.95 . 3) / 4 = 6.71 moles
