Chapter 6, Problem 11CT

Summary Introduction

To explain:

The number of bacteria in the original solution ofliter before dilution if 440 colonies come from the ${10}^{-3}$ serial dilution and 45 colonies from the ${10}^{-4}$.

Introduction:

Stepwise dilution of the matter in the solution is called serial dilution. Usually, the dilution factor is constant and it results in “geometric progression” of the concentration in a “logarithmic” way.