The pH of a solution depicts the alkalinity or the acidity of the components of the solution and is given as a negative log function of hydrogen ions.
The pH of the solution is:
2
The pH can be estimated as:
![\rm pH= - log \;H^{+}](https://tex.z-dn.net/?f=%5Crm%20pH%3D%20-%20log%20%5C%3BH%5E%7B%2B%7D)
- Ionic equation of reaction is written as:
![\rm HCl = H^{+}+ Cl^{-}](https://tex.z-dn.net/?f=%5Crm%20HCl%20%3D%20H%5E%7B%2B%7D%2B%20Cl%5E%7B-%7D)
- The mole ratio between HCl and
= 1 : 1
- Concentration of
= 0.01 M
![\begin{aligned}\rm pH & = - \rm log \; 0.01\\\\&= 2 \end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%5Crm%20pH%20%26%20%3D%20-%20%5Crm%20log%20%5C%3B%200.01%5C%5C%5C%5C%26%3D%202%20%5Cend%7Baligned%7D)
Therefore, 2 is the pH of the solution.
To learn more about pH follow the link:
brainly.com/question/10270061
I think the answer is c. I'm sorry if I'm wrong. I hope this helps also
Answer:
the mantle because it's just built different
Answer:
Q1. a) 4Al + 3O₂ ➟ 2Al₂O₃
b) 7.4 moles
c) 11.1 moles
Explanation:
To balance an equation, ensure that the total number of atoms of each element on both sides are equal.
Al + O₂ ➟ Al₂O₃
On the left side of the arrow, you would find the reactants while the product(s) is found on the left hand side.
<u>Reactants</u>
Al atoms: 1
O atoms: 2
<u>Product</u>
Al atoms: 2
O atoms: 3
After balancing,
4Al + 3O₂ ➟ 2Al₂O₃
We have 4 Al atoms and 6 O atoms on both sides.
b) The balanced equation tells us the mole ratio of Al to Al₂O₃.
Al: Al₂O₃
= 4: 2 (÷2 throughout)
= 2: 1
This means that for every 1 mole of Al₂O₃, 2 moles of Al is needed.
Since we need 3.7 moles of Al₂O₃,
number of moles of Al needed
= 2×3.7
= 7.4
c) 4Al + 3O₂ ➟ 2Al₂O₃
For every 4 moles of Al, 3 moles of O are needed.
For each mole of Al,
number of moles of O needed
= 3÷4
= 0.75
For 14.8 moles of Al,
number of moles of O required
= 0.75 ×14.8
= 11.1