0
No. The mass of one liter of feathers is not greater than the mass of 1 liter of
nails. The mass of 1 liter of nails is greater than the mass of 1 liter of feathers.
That's why 1 liter of nails is heavier than 1 liter of feathers.
A proton has a mass of approx. 1 "atomic mass unit" or "amu".
1/1840 the mass if a hydrogen atom.
what is the mass of 1 -centimeter cube of gold
1 mL of water has a mass of approximately 1 g.
(The mass of 1 milliliter of water is approximately 1 gram.)
1 L of water has a mass of approximately 1 kg.
(The mass of 1 liter of water is therefore approximately 1 kilogram.)