Which formula is used to calculate the amount of liquid oxygen in a tank?

The correct formula to calculate the amount of liquid oxygen in a tank involves the weight of the liquid oxygen and the specific constant that represents the conversion factor for calculating the volume of gas produced from the liquid. In this case, the figure 344 refers to the conversion from liquid oxygen to gaseous oxygen at standard temperature and pressure. Liquid oxygen expands to approximately 344 times its liquid volume when it becomes gas, which is critical in determining how much gas is available for patient use based on the weight of the liquid oxygen in the tank.

By using the weight of the oxygen in pounds divided by the patient flow rate, you can derive the amount of gaseous oxygen available for use. Thus, the formula captures essential factors needed to evaluate the flow being delivered to a patient safely and effectively. It emphasizes the relationship between the weight of liquid oxygen and how that translates to the flow rate required for patient care, ensuring practitioners have accurate information to manage oxygen delivery appropriately.