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Dimensional Analysis

Dimensional Analysis. Units of measures commonly encountered in the lab. ng/ m l. mM. m g. Dimensional Analysis. femtogram. Units of measures commonly encountered in the lab. From Robyt. 1.1.1 Significant Figures 1.1.2 Scientific Notation 1.1.3 Units. Most Commonly Encountered Units.

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Dimensional Analysis

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  1. Dimensional Analysis Units of measures commonly encountered in the lab

  2. ng/ml mM mg Dimensional Analysis femtogram Units of measures commonly encountered in the lab

  3. From Robyt • 1.1.1 Significant Figures • 1.1.2 Scientific Notation • 1.1.3 Units

  4. Most Commonly Encountered Units m (meter) g (gram) l (liter)

  5. Prefixes m (meter) g (gram) l (liter) 103 mm 103 mg 103 ml 106mm 106mg 106ml 109 nm 109 ng 1012 pg 1015 pg Use prefixes in tables and graphs

  6. Most Commonly Encountered Units m (meter) g (gram) l (liter) 103 mm 103 mg 103 ml Mass of protein, cells Volume of solutions 106mm 106mg 106ml Size of cells Volume of DNA or Enzyme Mass of DNA 109 nm 109 ng Wavelength of light Size of virus Mass of DNA 1012 pg Weight of single cell 1015 fg

  7. Derived Units - Concentration g/l = mg/ml = mg/ml = ng/nl

  8. Derived Units - Concentration g/l = mg/ml = mg/ml = ng/nl 103 mg/l = 103mg/ml = 103 ng/ml

  9. Derived Units - Concentration [Pro] [DNA] g/l = mg/ml = mg/ml = ng/nl 103 mg/l = 103mg/ml = 103 ng/ml ppm [DNA]

  10. Derived Units - Concentration g/l g/mol = mol/l (M)

  11. g/l = mg/ml = mg/ml = ng/nl___ g/mol mg/mol mg/mmol ng/nmol Molar Concentrations =? =? =? =?

  12. g/l = mg/ml = mg/ml = ng/nl g/mol mg/mmol mg/mmol ng/nmol Molar Concentrations = mol/l (moles per liter) = M (molar concentration)

  13. mM • millimolar – units mmol/l – symbol mM • M x 103 eg. 0.05 M = 50 mM • Concentration of buffers (Tris, Phosphate) and other salts (EDTA) in solutions

  14. mM • micromolar – units mmol/l – symbol mM • mM x 103 eg. 0.5 mM = 500 mM • Concentration of trace minerals and vitamins • KM of many enzymes

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