guest wrote:An Olympic size pool is 50.0 m long and 25.0 m wide. (a) How many gallons of water are needed to fill the pool to an average depth of 4.8 ft? (b) What is the mass (in kg) of water in the pool?
1 foot = 0.3048 m
4.8 feet = 1.463 m
Pool 50 m x 25 m x 1.463 m = 1828.8 m^3
1000 L = 1 m^3, so 1 828 800 L
1 L weighs 1 kg, approximately, depending on water temperature (really ay 4 degrees C), s0 1828 800 kg, or 1828.3 t (metric ton).
1 US gallon = 3.7854 L, so 483 119 US gallons.