Depends on the molecule.
Look in the Periodic Table at the atomic weights.
This number is the grams per mole.
Carbon for example has 12 grams in each mole.
There are 1000 moles in 1 kilomole.
meters and moles are not interchangeable.
1
75
3.785 kg
One pound is about 0.453 kg
250 kg
4.036 there is 1000g in one kg
1 kg = 1,000,000 mg
1/1000 kg or 0.001 kg
Answer: 1000 lb = 453.592 kg
1,000
A tonne (metric - not same as 'ton' imperial) is by definition 1,000 kg. One million tonnes is therefore 1,000,000 x 1,000 kg which is 1,000,000,000 kg or one billion kg.
One kilogram (kgs) is equal to one "kilo" (short for kilogram).
90 pounds x 1 kg/2.205 pounds = 40.82 kg = 40 kg (to one significant figure)
1000g