Wha is the volume (ml) of 0.23 kg of pure water

230ml

Explanation: One litre of pure water will weigh exactly 1000 grams (1kg).

for 1kg = 1L

0.23 kg = 0.23L

Therefore 1L = 1000ml

Thus, 0.23L

= 0.23L multiplied by 1000ml

=230ml.

0.23kg of pure water = 230ml volume of pure water.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.