Answer:
Explanation:
In this case, we have to remember the <u>relationship between the Ka value and the pH</u>. We can use the general reaction for any acid with his Ka value expression:
![Ka=\frac{[H^+][A^-]}{[HA]}](https://tex.z-dn.net/?f=Ka%3D%5Cfrac%7B%5BH%5E%2B%5D%5BA%5E-%5D%7D%7B%5BHA%5D%7D)
In the Ka expression, we have a<u> proportional relationship</u> between Ka and the concentration of 
. Therefore, if we have a higher Ka value we will have a smaller pH (lets keep in mind that with a higher
So, if we have to find the higher pH value we need to search the <u>smaller Ka value</u> in this case .
I hope helps!
Answer:
52.0 g of LiCl represents 1.23 moles of compound
Explanation:
In order to determine the moles of LiCl, we need to know the molar mass of our compound
Molar mass LiCl = Molar mass Li + Molar mass Cl
Molar mass LiCl = 6.94 g/mol + 35.45 g/mol =42.39 g/mol
Now, we can do the conversion:
52 g . 1 mol / 42.39 g/mol = 1.23 moles
Answer:
Lemon juice has lowest pH.
Explanation:
pH is the negative log of hydrogen ion concentration. By increasing the Hydrogen ion concentration pH will decrease.
pH = -log [H⁺]
According to pH scale,
The pH of 7 is consider neutral. The pH below the 7 is consider acidic and above the 7 is basic.
The sodium hydroxide is strongest base because it fully dissociate into ions.
It dissociate to gives the sodium and hydroxyl ions and solution became more basic.
NaOH → Na⁺(aq) + OH⁻(aq)
Its pH is 12. It is also known as caustic soda.
The pH of blood is vary from 7.35 - 7.45. it is slightly alkaline.
The pH of lemon juice is ranging between 2-3.
The pH of tap water is ranging between 6-8.5.
From above given information it can be noticed that lemon juice have lowest pH i.e 2-3. It is acidic, because its pH is less than 7.
