The problem say what is the volume (in kL) of 3.7505 x 10^4 mg of iron? Iron has a density of 7.87 g/ml. Use correct significant figures

So first find the volume

so 7.78g/ml and (3.7505 times 10^4) grams

therefor we dividde (3.7505 times 10^4) by 7.78 and get how many ml

the answer is 4820.69 ml

kL means kilo lieters

kilo=1000

kL=1000Liters

ml=milileters=1/1000 leiter

1000ml=1L

therfor

1kL=1000L

1000L=1000 times (1000ml)

1000L=1,000,000ml

1kL=1,000,000ml

so to convert to kL divide 4820.69 by 1,000,000

0.00482069

convert to scientifiic notation

4.8 times 10^-3

the answer is 4.8 times 10^-3 kL