Question: What is the pH of a 0.1 M solution of K2CO3?
Options:
9.0
10.0
11.0
12.0
Correct Answer: 10.0
Solution:
K2CO3 is a salt of a weak acid (H2CO3) and strong base (KOH), resulting in a basic solution with pH around 10.
What is the pH of a 0.1 M solution of K2CO3?
Practice Questions
Q1
What is the pH of a 0.1 M solution of K2CO3?
9.0
10.0
11.0
12.0
Questions & Step-by-Step Solutions
What is the pH of a 0.1 M solution of K2CO3?
Step 1: Identify the components of K2CO3. It is made of potassium ions (K+) and carbonate ions (CO3^2-).
Step 2: Recognize that K2CO3 is a salt formed from a weak acid (carbonic acid, H2CO3) and a strong base (potassium hydroxide, KOH).
Step 3: Understand that when K2CO3 dissolves in water, it will produce carbonate ions (CO3^2-), which can react with water to form bicarbonate (HCO3-) and hydroxide ions (OH-).
Step 4: The presence of hydroxide ions (OH-) in the solution indicates that the solution is basic.
Step 5: Estimate the pH of the solution. A 0.1 M solution of K2CO3 typically has a pH around 10, indicating it is basic.
No concepts available.
Soulshift Feedback×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy?
