2CLabManual201303

However this setting may vary depending on the hot

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Unformatted text preview: er policeman, and then wash the solid as directed by the experimental procedure. 7. Heating You will use both a hot plate and a Bunsen burner to heat solids and solutions. Always be careful to avoid burns and never heat a material too quickly or explosive "bumping" can occur. When using a hot plate always begin at the setting indicated in the manual. However, this setting may vary depending on the hot plate so you will have to experiment. In using a Bunsen burner, always use a tight blue flame as shown in Figure 8. Control the heat transfer by adjusting the distance from the burner to the object. Note that the distances suggested in the manual are measured from the hottest part of the flame to the object. Figure 8: The Bunsen Burner 8. Barometric Readings and Unit Conversions There are barometers placed in each laboratory room that give the barometric pressure readings in inches of Hg. This measurement must be converted to mmHg. The conversion factor is 1.00 inch = 25.4 mm. 9. p...
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.

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