A fish tank holds 40 gallons of water (density 1.00g/mL) when full. What is the mass of the water in kilograms (kg)?
40
To find the mass of the water in kilograms, we need to first find the volume of the water in liters, and then convert it to kilograms using the density of water.
1. Determine the volume of the water in liters:
Since 1 gallon is equal to approximately 3.785 liters, we can convert the volume of the fish tank from gallons to liters:
40 gallons * (3.785 liters/gallon) = 151.4 liters
2. Convert the volume of water in liters to mass in kilograms:
The density of water is 1.00 g/mL, which means that 1 liter of water has a mass of 1.00 kilograms. Therefore, the mass of the water in kilograms is equal to its volume in liters:
151.4 liters = 151.4 kilograms
So, the mass of the water in the fish tank is approximately 151.4 kilograms (kg).