A 0.1 M solution is diluted by three orders of magnitude. What is the new concentration?

• A. 0.1 M
• B. 0.0001 M
• C. 0.001 M
• D. 0.01 M

Answer: (B)

Verified step by step guidance

1. Understand that diluting a solution by three orders of magnitude means the concentration decreases by a factor of 10^3 (which is 1000).
2. Write the initial concentration as \(C_1 = 0.1\,M\) and the dilution factor as \$10^3 = 1000$.
3. Use the dilution relationship: \(C_2 = \frac{C_1}{\text{dilution factor}}\) where \(C_2\) is the new concentration after dilution.
4. Substitute the values into the formula: \(C_2 = \frac{0.1}{1000}\).
5. Simplify the expression to find the new concentration, which will be \$0.0001\,M$.