Express each of the following in kilograms
a) `5.84 xx 10^(-3)`mg
b) `58.34`g
c) `0.584`g
d) `5.873 xx 10^(-21)`g

Explanation

a) `10^(6) mg =1 kg`
`therefore 5.84 xx 10^(-3) mg = (1 xx 5.84 xx 10^(-3))/(10^(6)) kg =5.84 xx 10^(-9)` kg
b) `therefore 10^(3)g=1kg`
`therefore 58.34g = (1 xx 58.34)/(10^(3))kg = 58.34 xx 10^(-3)` kg
`=5.834 xx 10^(-2)` kg
c) 0.584g `=(1 xx 0.584)/(10^(3))kg = 0.584 xx 10^(-3) kg = 5.84 xx 10^(-4)`kg
d) `5.873 xx 10^(-21)g = (5.873 xx 10^(-21))/(10^(3)) kg =5.873 xx 10^(-24)` kg