What is the weight of salt water and fresh water per cubic foot respectively?

Saltwater and freshwater have different densities, which affect their respective weights per cubic foot. Freshwater has a weight of approximately 62.5 pounds per cubic foot, while saltwater, which contains dissolved salt, is denser due to the added mass of the salt. As a result, saltwater typically weighs around 64 pounds per cubic foot.

The correct pairing reflects the accurate weights of these two types of water. Understanding this distinction is crucial for divers, particularly when calculating buoyancy and weight requirements for diving equipment. Proper knowledge of the weight of the water you’re diving in ensures more effective management of air consumption and buoyancy control, which are vital for safe diving practices.