Question

Suppose a pool begins with a population of only $1$ bacterium. What would be the mass of the population after $30$ hours?

Answer 1

Each Escherichia coli bacterium has a mass of $=2\times {10}^{-12}$ g
After $30$ hrs, the number of bacteria in the pool $=4.8\times {10}^8$
Thus, mass of the total population of bacteria after $30$ hrs $=2\times {10}^{-12}\times 4.8\times {10}^8$ g
$=9.6\times {10}^{-4}$ g