In ChemLab the bunsen burner is added by selecting the bunsen burner button from the tool bar, equipment menu or right-mouse-button context popup menu. Consists of a metal tube with a valve for controlling the air-fuel mixture. If any solid is present in the filter a dialog box will appear asking whether you wish to discard or keep and place it another container.īunsen burner : a gas burner used in laboratories. To remove the funnel, select the erlenmeyer flask and pick the buchner funnel from the toolbar, equipment menu or right-mouse-button context menu. In ChemLab a buchner funnel is added either by clicking on the buchner funnel from the toolbar, which adds an erlenmeyer flask with bruchner funnel already inserted, or by first selecting an erlenmeyer flask and then picking the buchner funnel from the toolbar, equipment menu or right-mouse-button context menu. They can be added to the lab space by pressing the toolbar beaker button (100ml), selecting the 100 or 600ml menu items from the equipment menu or right click on the lab space and selecting the beaker menu item from the popup context menu.īuchner funnel : a funnel with a flat circular base perforated with small holes used for filtering with suction. ChemLab provides a 100ml, a 250ml and a 600ml beaker. Note that the container will automatically be moved into position.īeaker : wide mouth, thin walled containers with projected lip used widely in laboratory chemistry. In this example, the beaker plus contents have a mass of 75.1234g. High sensitivity balance (shown below) has four-decimal place precision. Note that the container will automatically be moved into position. In this example, the beaker plus contents have a mass of 75.123g. The centigram balance has three modes: (1) balanced, when the masses on its arm equal the load on the pan and it is ready to read, (2) overweight, when the load is greater than 111g, and (3) underweight, when the balance has been zeroed with a mass on its pan and the mass has been removed.Įlectronic balance (shown below) has three-decimal place precision. (Note that the yellow balloon is a zoom that displays the indicator for reading the second decimal place.) The pan of the centigram balance may be used to pour or receive the contents of other containers. In this example, the beaker plus contents have a mass of 75.12g. This feature displays the mass of the contents below the container and does not require any equipment.Ĭentigram balance (shown below) has two-decimal place precision and can weigh a maximum of 111g. If all that is required is the mass of a container’s contents, then a weighing scale may be used. These balances enable the user to practice weighing techniques. If any items are on a balance when it is zeroed, the balance will show zero mass and readings taken from that point onward will be offset negatively by the mass of these items. Containers with chemicals may be placed on a balance or chemicals may be added directly to it using the Chemicals dialog box. Any balance may be set to zero by selecting it and using Zero Balance from the Options menu or from the Right-mouse button context menu. Balances : three different balances may be chosen from the Equipment menu or by clicking on the pull-down menu beside the scales button on the toolbar.
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