Question 1

What is the pH of 0.05M of NH₄Cl?
Ka=5.6x10^-10

(A) 4.28

(B) 5.28

(C) 6.28

(D) none of the above

Your response

Not answered yet

Question 2

What is the pH of 0.05M of NaClO?
Kb=3.3x10^-7

(A) 8.11

(B) 9.11

(C) 10.11

(D) none of the above

Your response

Not answered yet

Question 3

What is the pH of 0.05M of NaHCO₃? Kb=2.3x10^-8

(A) 9.53

(B) 10.53

(C) 11.53

(D) none of the above

Your response

Not answered yet

Question 4

What is the pH of 0.05M of KF? Kb=1.5x10^-11

(A) 7.94

(B) 8.94

(C) 9.94

(D) none of the above

Your response

Not answered yet

Question 5

How many grams of NaHCO₃ will be used to make a 1.0L solution that has a pH = 9.0?

(A) 0.37g

(B) 0.98g

(C) 1.25g

(D) none of the above

Your response

Not answered yet