Slide 1Contact InformationSlide 3Significant FiguresSlide 5Slide 6Slide 7Slide 8Reading a MeniscusSlide 10Slide 11Slide 12In Lab ProtocolSlide 14CHEM 1111General Chemistry I LaboratoryFall 2011TA: Elizabeth BraunCHEM 1111.110Contact InformationElizabeth Braun[email protected]Office Hours: –Wednesday 11:00am-12:00pm–GEM CenterSyllabusSafetyLab Set UpWorkshopAssignment of DrawersSignificant Figures1. Non-zero integer values always count9,463.7217 Significant Figures2. Zeros between non-zero integers always count109,034.818 Significant Figures3. Leading zeros never count0.0000522 Significant Figures4. Trailing zeros always count in the presence of a decimal point.0.07081006 Significant FiguresSignificant Figures5. When using multiplication or division, the final number of significant figures is determined by the measured number with the smallest number of significant digits. Measured Values: 230.1 g, 230.14g, 230 g. The result has 3 Significant FiguresSignificant Figures6. When using addition or subtraction the final number of decimal places is determined by the measured value with the smallest number of decimal places. Measured Values: 14.57 mm, 16.021 mm, 15.9 mmThe result has 1 significant digit after the decimalSignificant Figures1,984.2007 Significant Figures0.0023164 Significant Figures1.22300 x 10-4 6 Significant FiguresPracticing Significant FiguresReading a Meniscus•http://www.youtube.com/watch?v=D_g0U3vxr18&feature=related http://morrisonlabs.com/meniscus.htm6.62 mLReading a Meniscus Practicehttp://morrisonlabs.com/selfcheck662answer.htm11.5 mLReading a Meniscus Practicehttp://morrisonlabs.com/selfcheckansw115ml.htmReading a Meniscus Practice52.8 mLIn Lab ProtocolPlace Personal Items on ShelfKeep goggles, notebook, lab handoutDrawer AssignmentsSafety ProceduresEquipment