Review of Fundamentals (1)

Review of Fundamentals (1) - CHEMISTRY 139 Chemistry:...

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1 CHEMISTRY 139 – Chemistry: Physical Principles A course for students of the life sciences C 6 H 12 O 6 (aq) + 6 O 2 (g) 6 CO 2 (g) + 6 H 2 O(l) Welcome! Measurements contain number and scale . Measurements and Observations UNITS ARE IMPORTANT! Maybe I should’ve been more clear. I am paying you 2000 a week…but in quarters, not dollars. REVIEW!! Silberberg Chapters. 1: 1.1 – 1.6 2: 2.1 – 2.9 3: 3.1 – 3.5
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Système International (SI) Quantity Unit Symbol Common non-SI mass kilogram kg g, mg, μg length meter m cm, mm, nm, Å time second s hr, min temperature Kelvin K ºC, ºF amount mole mol electric current ampere A Derived Units Unit Conversion (dimensional analysis) Keep track of your units. It will help prevent mistakes. A unit y B unit x Conversion factor Example: The hemoglobin molecule is nearly spherical with a diameter of about 55 angstroms. How many hemoglobin molecules will fit within a length of 1 cm? = measurement unit B
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Review of Fundamentals (1) - CHEMISTRY 139 Chemistry:...

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