Which pieces of safety equipment should be worn if you are working with sodium hydroxide, a strong base, in a chemistry lab? A)apron and mask
B)goggles and apron
C)apron and respirator
D)goggles and chest protector

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)