Q:

What is the use of a watch glass?

A:

A watch glass is used in the chemistry laboratory to weigh solids and to hold small amounts of liquids. It is a concave dish and is designed to be lightweight. Watch glasses don't cost very much money to acquire.

A watch glass can be used to dry small amounts of solids. It's also used for covering containers with liquids. A glass jar containing a gas can be covered with a watch glass. It's also a handy tool for placing small amounts of a substance beneath the eyepiece of a compound microscope. Additionally, watch glasses are also used for evaporating small amounts of a liquid.

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