Answer:
55 cL
Step-by-step explanation:
1 µL = 10⁻⁶ L
550000 µL = 550000 x 10⁻⁶ L = 0.055 L
Therefore option A is incorrect.
1 µL = 10⁻⁴ cL
550000 µL = 550000 x 10⁻⁴ cL = 55 cL
Therefore option B is correct.
1 µL = 10⁻³ mL
550000 µL = 550000 x 10⁻³ mL = 550 mL
Therefore option C is incorrect.
1 µL = 10³ nL
550000 µL = 550000 x 10³ nL = 550000000 nL
Therefore option D is incorrect.