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finalreviewCHEM

# finalreviewCHEM - 1 CH 301(50580 Fall 2003 Final Exam...

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1 CH 301 (50580) Fall 2003 Final Exam Review Sheet Conversions: 1. Metric to metric units. e.g. How many μ L are there in 50.5 mL? 1.0 μ L = 1.0 x 10 6 L 1.0 L = 1.0 x 10 6 μ L 1.0 mL = 1.0 x 10 3 L 1 3 6 4 5.05 10 1.0 10 1.0 10 5.05 10 1 1.0 x mL x L x L x L mL L µ µ ⎞⎛ = ⎟⎜ ⎠⎝ 2. Scientific notation and significant figures: E.g. Write the following number in scientific notation: 0.001200100 Scientific notation includes all the significant numbers. To determine the number of significant figures, remember the following rules: o All whole numbers are significant o All zeros between whole numbers are significant o Zeros that are not between whole numbers are significant if there is a decimal and whole number to the left of the zero. In the number we see that there are no whole numbers to the left of the first three zeros that appear in the number. We notice that the final two zeros have a whole number to the left (it doesn’t matter if the whole number is next to the zero). Let’s underline the significant numbers: 0.001200100 Now we can place the number in scientific notation: 1.200100 x 10 3 3. Conversions (dimensional analysis).

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finalreviewCHEM - 1 CH 301(50580 Fall 2003 Final Exam...

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