What is the use of the test tube holder?

A test tube holder is used to hold Test Tubes. Particularly, for liquid heating, when holding a test tube holder with a test tube, hold it such that it aligns with the lab bench and also point the open end of the tube away from yourself or anyone nearby.

So, what is the purpose of a test tube?

Test tubes are slender containers that hold small amounts of liquid and are used in scientific experiments. They can range between 50 mm to 250 mm in length and 13 and 20 mm in width. Test tubes are usually made of glass or plastic, but the ones that are made of glass are able to be used in heat-up situations.

What are the uses of test tube rack?

Test tube rack is a laboratory equipment that is used to hold upright multiple test tubes at the same time. It is most commonly used when various different solutions are needed to work with simultaneously, for safety reasons, for safe storage of test tubes, and to ease the transport of multiple tubes.

What is the evaporating dish used for?

Evaporating dishes are used to evaporate excess solvents – most commonly water – to produce a concentrated solution or a solid precipitate of the dissolved substance. Most are made of porcelain or borosilicate glass.

What is a clamp is used for?

A C-clamp or G-clamp is a type of clamp device typically used to hold a wood or metal workpiece, and often used in, but are not limited to, carpentry and welding.

What is the use of a reagent bottle?

Reagent bottles, also known as media bottles or graduated bottles, are containers made of glass, plastic, borosilicate or related substances, and topped by special caps or stoppers and are intended to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves.

What instrument is used to measure the volume?

If you were measuring out a volume of a liquid, did you use a beaker or a graduated cylinder? Look at the two figures above; if you were required to measure out 65 mL, what instrument would you most likely want to use? The graduated cylinder has graduations every 10 mL and then further graduations every 5 mL.

What is the instrument used to measure the volume of a liquid?

Volumetric cylinders and volumetric flasks are used to measure volume of liquids contained in them. They are calibrated for volume included in them – this is indicated by the marking “IN”. The liquid has accurate volume when it reaches the corresponding marking on the scale. Volume is usually indicated in mL.

What is the use of a Erlenmeyer flask?

The Erlenmeyer flask was created by Emil Erlenmeyer, a German chemist, in the 1860s. He developed a flask that has a flat bottom with a tapered neck. The mouth, or opening, is used for pouring solutions and may be closed with a stopper in order to store samples.

What is the purpose of a test tube?

Test tubes are slender containers that hold small amounts of liquid and are used in scientific experiments. They can range between 50 mm to 250 mm in length and 13 and 20 mm in width. Test tubes are usually made of glass or plastic, but the ones that are made of glass are able to be used in heat-up situations.

What are the uses of test tube rack?

Test tube rack is a laboratory equipment that is used to hold upright multiple test tubes at the same time. It is most commonly used when various different solutions are needed to work with simultaneously, for safety reasons, for safe storage of test tubes, and to ease the transport of multiple tubes.

What are the laboratory equipment and their uses?

Basic Laboratory Glassware and Equipment

  • Balance. Used for measuring mass.
  • Beaker. Used to hold, mix, and heat liquids.
  • Beaker Tongs. Used to pick up beakers.
  • Bunsen Burner. Frequently used as a heat source in the absence of flammable materials.
  • Buret. Used for dispensing an accurate volume of a liquid.
  • Clay Triangle.
  • Crucible.
  • Crucible Tongs.
  • What is the use of a test tube?

    Test tubes are widely used by chemists to handle chemicals, especially for qualitative experiments and assays. Their spherical bottom and vertical sides reduce mass loss when pouring, make them easier to wash out, and allow convenient monitoring of the contents.

    What is the use of a beaker?

    A beaker is a simple “container” which is used for heating and stirring liquids in laborartories. These are generally in cylindrical shape with a flat bottom. Most beakers have a small beak to pour liquids as given below in picture.

    What is the use of a measuring cylinder?

    A graduated cylinder (or measuring cylinder) is a piece of laboratory glassware used to measure the volume of liquids. It is used to accurately measure the volume of chemicals for use in reactions.

    What is the use of a funnel?

    A funnel is a pipe with a wide (often conical) mouth and a narrow stem. It is used to channel liquid or fine-grained substances into containers with a small opening. Without a funnel, spillage may occur. Funnels are usually made of stainless steel, aluminium, glass, or plastic.

    What are the uses of test tube brush?

    A test tube or spout brush is a brush used for cleaning test tubes and narrow mouth laboratory glassware, such as beakers and flasks. It is composed of nylon, synthetic, or animal fur bristles of various diameters lined against a rather sturdy wire handle with a looped end for hanging.

    What is the use of a watch glass?

    A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance and as a cover for a beaker.

    What is the use of a filter funnel?

    A filter funnel is a laboratory funnel used for separating solids from liquids via the laboratory process of filtering. In order to achieve this, a cone-like shaped piece of filter paper is usually folded into a cone and placed within the funnel. The suspension of solid and liquid is then poured through the funnel.

    What is the use of spatula in laboratory?

    In laboratories, spatulas and microspatulas are small stainless steel utensils, used for scraping, transferring, or applying powders and paste like chemicals or treatments. Many spatula brands are also resistant to acids, bases, heat, and solvents, which make them ideal for use with a wide range of compound.

    What is the use of a hot plate?

    A hot plate is a portable self-contained tabletop small appliance that features one, two or more electric heating elements or gas burners. A hot plate can be used as a stand-alone appliance, but is often used as a substitute for one of the burners from an oven range or a kitchen stove.

    What is the use of a ring stand?

    A retort stand, sometimes called a clamp stand or a ring stand, is a piece of scientific equipment, clamps can be attached to hold other pieces of equipment. For instance, burettes, commonly used for titration experiments, test tubes and flasks.