- 1). Calculate temperature in Celsius since temperature in these units is usually given in water density tables.
Temperature(C)=0.55556 x (Temperature(F)-32)
In our example, temperature(C)= 0.55556 x (86-32)=30.00 Celsius. - 2). Navigate to "Physical characteristics of water" table and find in the column "density" a value (in kg/m^3) corresponding to the temperature. Divide this density value by 1000 to obtain it in g/ml units. In our example, water density at 30 Celsius is 995.71 kg/m^3=0.99571 g/ml.
- 3). Multiply water volume and density to calculate water weight. In our example, water weight =240 ml x 0.99571 g/ml= 238.97 g.
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