A population of bacteria reproduces exponentially, has a geometric growth rates of 2.0, and an initial population size of 1. If this species of bacteria reproduces every 30 minutes how many bacteria will there be 5 hours from now ?
To find the number of bacteria 5 hours from now, we need to convert hours to minutes.
5 hours = 5 * 60 = 300 minutes.
The geometric growth rate of 2.0 means that the population size doubles every time it reproduces.
Since the initial population size is 1, after 300 minutes (5 hours), the population size would have doubled 300/30 = <<300/30=10>>10 times.
After doubling 10 times, the final population size would be 1 * (2^10) = 1 * 1024 = <<1*(2^10)=1024>>1024 bacteria. Answer: \boxed{1024}.