Spring.wmf (18300 bytes) Plant Physiology (Biology 327)  - Dr. Stephen G. Saupe;  College of St. Benedict/ St. John's University;  Biology Department; Collegeville, MN  56321; (320) 363 - 2782; (320) 363 - 3202, fax;    ssaupe@csbsju.edu

Some Useful Equations & Conversions

Volume

cylinder = (p) r2h
sphere = 4/3 (p) r3 = 4.189 r3

Area

cylinder = 2 (p) r2 + 2 (p) rh
sphere = 4(p)r2 = 12.57r2
circle = (p)r2

Solutions

Molarity = mol liter-1
Molality = 1000 g liter-1
c1 v1 = c2 v2
formula weight = g mol-1
% = grams/volume* 100

Metric Conversions

1 mm3 = 1 �L  =  1000 nL = 1 x 10-6 pL
1 cm3 = 1 mL
1 �m3 = 10-9 mm3 = 10-9  �L = 10-6 nL = 10-3 pL

Other

plate magnification =  size of drawing divided by actual size of object (units must match)

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Last updated:  01/07/2009     � Copyright  by SG Saupe