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6) femto = 10^-15

==> 39000 femtomôles = 39000x10^-15 moles = 39x10^-12 moles = 39 picololes

En mmol : 39x10^-12 mol.L^-1 = 39x10^-3x10^-9 = 39x10^-9 mmol.M^-1



7) 783,348 quadrillions de mètres = 783,348x10^24 m = 783,348 yottamètres = 783,348x10^21 km

8) 0,3 Gm.s^-1 = 0,3x10^9 m.s^-1 = 0,3x10^6 km.s^-1

0,1496 Tm = 0,1496x10^12 m = 0,1496x10^9 km

t = d/v = 0,1496x10^9 / 0,3x10^6 = 0,1496x10^3/0,3 = 149,6/0,3 = 1496/3 = 498,66 s (soit 8mn et 18,66s)

9) 120,754 A = 120,754x10^-10 m = 120,754 x10^-18 x 10^8 = 120,754x10^8 attomètres

120,754 x 10^-24 x 10^14 = 120,754x10^14 yoctomètres

120,754 x 10^-3 x 10^-7 = 120,754x10^-7 mm

10)

-1,602x10^-19 = -1,602x10^-21x10^2 = -1,602x10^2 zeptoC

-1,602x10^-19 = -1,602x10^-9x10^-10 =
-1,602x10^-10 nanoC

9,109x10^-31 = 9109x10^-9x10^-22 = 9109x10^-22 nanogrammes

9,109x10^-31 kg = 9109x10^-31 g