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September 19, 2014

Lab Equipment Notes September 19, 2014 Lab Equipment: Glassware

• Beakers are used to hold liquids. • Can be used to heat liquids at relatively low temperatures.

• Erlenmeyer flasks are used to hold liquids. • Sloped sides = ideal for swirling mixtures September 19, 2014 Lab Equipment

• are used to heat solids at high temperatures. September 19, 2014 Lab Equipment: Pick up tools

• Beaker tongs pick up hot beakers.

• tongs pick up hot crucibles.

• clamps pick up hot test tubes. September 19, 2014 Lab Equipment: Measuring volume

• Graduated cylinders accurately measure liquid volumes. • Always read from the bottom of the meniscus September 19, 2014 Lab Equipment: Measuring mass

• Electronic balance measures mass to .001 g. • Record ALL of the digits and the units • Make sure to tare the balance before use. September 19, 2014 Lab Equipment: Heating tools

• is a high temperature heat source. • Connect to gas and use a striker to light.

• is used to heat at low temperatures. • It still gets HOT--use caution.

• Temperature probe measures temperatures! • Read temperature on digital screen. September 19, 2014 Lab Equipment: Small volumes

• Test tubes hold small volumes of liquids. • Easy to observe contents. • Test tubes go in a or if hot, in a beaker.

• is used to transfer small volumes of liquids. September 19, 2014 Lab Equipment: Evaporation

• Watch is used to slowly evaporate liquids.

• are used to evaporate or heat liquids or solids at low temperatures. September 19, 2014 Lab Equipment: Miscellaneous

• Rubber stoppers close off test tubes and flasks. • Some have holes for tubing.

• is used to transfer solids

• Stirring rod is used for stirring. September 19, 2014

Lab Equipment: Miscellaneous

• is used to transfer liquids from one container to another. • Can also be used with a filter to remove solids.

• Goggles protect your eyes from solid and liquids from getting into your eye. • Should always be worn when working with chemicals, heat, or anything potentially dangerous. • Protects your EYES not your forehead. September 19, 2014

Lab Equipment: Miscellaneous

• Water is used to rinse out glassware. Not a toy. • Only fill with distilled water. September 19, 2014