A laboratory flask is a glassware commonly used in scientific experiments and chemical reactions. Material: Made of borosilicate glass, which is resistant to thermal shock and chemical corrosion. Shape: Usually cylindrical with a flat bottom and a narrow neck. The shape may vary depending on the specific purpose of the flask. Capacity: Available in various sizes, ranging from a few milliliters to several liters. Markings: Often has graduations marked on the side to measure the volume of liquids accurately. Neck: The neck of the flask is typically elongated to allow for easy pouring and to minimize spills. Opening: It may have a ground glass joint or a screw cap to securely seal the contents inside. Function: Used for mixing, heating, cooling, and storing liquids during experiments or chemical reactions. Types: Common types include Erlenmeyer flasks, round-bottom flasks, volumetric flasks, and boiling flasks, each designed for specific purposes. Clarity: The glass is transparent, allowing for easy observation of the contents and reactions inside. Durability: Designed to withstand high temperatures and chemical reactions without breaking or deforming easily. Versatility: Can be used in various laboratory settings, including chemistry, biology, pharmaceuticals, and research.