Answer:
5.63 microgram (μg)
Step-by-step explanation:
Here mass is given in miligram
Some of the prefixes of the SI units are
1 gram = 10⁻³ kilogram
1 milligram = 10⁻⁶ kilogram
1 microgram = 10⁻⁹ kilogram
1 nanogram = 10⁻¹² kilogram
1 microgram = 10⁻³ miligram
The number is 0.783
Here, the only solution where the number of significant figures is three is microgram. If any other prefix is chosen then the significant figures will increase.


So, 0.00563 miligram = 5.63 microgram