Final answer:
To convert 143,000 gallons of liquid oxygen to milliliters, multiply by the conversion factor of 3785.41 milliliters per gallon, resulting in approximately 541,113,430 milliliters.
Step-by-step explanation:
The question asks how many milliliters are contained in the external tank of the space shuttle, which held 143,000 gallons of liquid oxygen. To convert gallons to milliliters, we use the conversion factor of 1 gallon being approximately equal to 3785.41 milliliters.
Using this conversion factor, the calculation to convert 143,000 gallons to milliliters is as follows:
- Multiply the number of gallons by the conversion factor: 143,000 gallons * 3785.41 milliliters/gallon.
- The result is the volume in milliliters: 541,113,430 milliliters.
Therefore, the space shuttle's external tank held approximately 541,113,430 milliliters of liquid oxygen.