(Solved): Weve seen that fish can control their buoyancy through the use of a swim bladder, a gas.filled How ...

Weve seen that fish can control their buoyancy through the use of a swim bladder, a gas.filled How many moles of air are in the swim bladder when the fish is at a depth of \( 98 \mathrm{ft} \) ? organ inside the body You can assume that the gas pressure inside the swim bladder is roughly equal to the extemal water pressure. A fish swimming at a particular depth adjusts the volume of its swim bladder to give it neutral buoyancy. If the fish swims upward or dowmward, the changing water pressure causes the bladder to expand or contract. Consequently, the fish must adjust the quantity of gas to restore the original volume and thus reestablish neutral buoyancy. Consider a large, \( 7.0 \mathrm{~kg} \) striped bass with a volume of \( 7.0 \mathrm{~L} \). When neutrally buoyant, \( 7.0 \% \) of the fish's volume is taken up by the swim bladder. Assume a body temperature of \( 15^{\circ} \mathrm{C} \). What will the volume of the swim bladder be if the fish ascends to a \( 50 \mathrm{ft} \) depth without changing the quantity of gas? Assume that the density of the salt water is \( 1030 \mathrm{~kg} / \mathrm{m}^{3} \). Express your answer to two significant figures and include the appropriate units. To return the swim bladder to its original size, how many moles of gas must be removed? Express your answer in moles.