If you perform a series of 4 consecutive 10-fold dilutions, what is the final dilution factor relative to the original solution?

• A. 10,000-fold
• B. 40-fold
• C. 100-fold
• D. 400-fold

Answer: (A)

Verified step by step guidance

1. Understand that a 10-fold dilution means the solution is diluted to 1/10th of its previous concentration each time.
2. Recognize that performing 4 consecutive 10-fold dilutions means multiplying the dilution factors together: each step contributes a factor of 10.
3. Express the total dilution factor as the product of the individual dilution factors: \$10 \times 10 \times 10 \times 10$.
4. Rewrite the product using exponents: \$10^4$.
5. Calculate the value of \$10^4$ to find the final dilution factor relative to the original solution.