Answer:
8.73
Explanation:
The concentration of acetic acid can be determined as follows:
Moles of =
=0.0090 moles
Moles of
= 0.0090 moles
The equation for the reaction can be expressed as :
----->
Concentration of ion =
=
= 0.052 M
Hydrolysis of ion:
----->
⇒
=
As K is so less, then x appears to be a very infinitesimal small number
0.052-x ≅ x
pH = 14 - pOH
pH = 14 - 5.27
pH = 8.73
Hence, the pH of the titration mixture = 8.73
Answer:
False
Explanation:
I just took the test and got it right
3 valence electrons are transferred in the formation of the compound potassium nitride because nitrogen needs 3 valence electron to become stable, or to have the electron configuration of noble Gases.
Answer:
pH = 13.1
Basic
Explanation:
Step 1: Given data
Hydrogen ion concentration ([H⁺]): 6.7 × 10⁻¹⁴ M
Step 2: Calculate the pH of the solution
We will use the definition of pH.
pH = -log [H⁺]
pH = -log 6.7 × 10⁻¹⁴ = 13.1
- When pH < 7, the solution is acid.
- When pH = 7, the solution is neutral.
- When pH > 7, the solution is basic.
Since pH > 7, the solution is basic.
Symbol : O
Element Family : Oxygen Group or Chalcogens: Group 16 (VIA) - 6 valence electrons
Atomic Number : 8
Atomic Mass : 15.999 u