Answer to Question #66944 in Physical Chemistry for murahi

Question

Question 16 : Which of these is incorrect about the pH of a solution?
pH = -log
[
H
+
]
[H+]

an alkali has a higher pH value than an acid
The higher the pH, the more acidic the solution is
It is a measure of the acidity of the solution

Question 17 : How many coulombs of charge pass through a cell if 2.40 amperes of current are passed through the cell for 85.0 minutes?
204 C
2120 C
12200 C
0.133 C

Question 18 : Which of the followings is not a Bronsted acid?
HCl

H
2
S
O
4
H2SO4


A
l
C
l
3
AlCl3


H
N
O
3
HNO3

Answer 1

Question 16: The higher the pH, the less acid solution. So the correct answer: The higher the pH, the more acidic the solution is.

Question 17: So the correct answer: 12200 C.

Question 18: In the theory of Bronsted-Lauri, an acid is any substance releasing protons in solution. AlCl 3 does not have protons. So the correct answer: AlCl3.

Answer:
Question 16: The higher the pH, the more acidic the solution is;
Question 17: 12200 C;
Question 18: AlCl3.