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II. 6,3x10-8 B. 8,5 µg
III. 8,5x10-2 C. 85 mg
A. 63 ng
ng significa nanogramos
1ng = 10^-9 g
=> 63 ng * [10^-9g/ng] = 6,3 * 10^-8 g ------ opción II.
B. 8,5 µg
µg significa microgramos
1 µg = 10^-6 g
=> 8,5 µg * 10^-6 g / µg = 8,5 * 10^-6 g ---------- opción I.
C. mg = miligramos
1mg = 10^-3 g
85 mg * 10^-3 g / mg = 8,5* 10^-2 g ----------- opción III.