We can solve this problem by following these steps:
Step 1: Determine the number of doubling periods
Since the yeast doubles in volume every 2 hours and we want to know the volume after 8 hours, we need to find out how many 2-hour periods are there in 8 hours.
To do this, we divide the total number of hours (8) by the length of each period (2). So the number of doubling periods is .
Step 2: Use the exponential growth formula
The formula for exponential growth in this case is , where:
is the final volume.
is the initial volume, which is here.
is the number of doubling periods, which we found to be .
Step 3: Plug in the values and calculate
Substitute