40000
100 units
Sorry, you're providing a number with no units and asking for it to be converted to a number of units. There is no way to answer this question.
There is one unit of CC that is in a 250 mg ethanate.
"Mg" is a metric unit. It's 0.001 gram.
This question needs clarification, because "formula units" can mean either the number of atoms to constitute one formula or Avogadro's Number of such formula units, although the latter should more precisely described as "gram formula units".
Depends on what units you are talking about :)
40000
0,16 mg NaCl is equivalent to 2,7.10-5 mol.
40000 units of what? without some known value to give an equivalence betweem 'units' and mg this cannot be answered.
100 units
The gram formula unit mass of magnesium chloride is 95.21. Therefore, 21.2g of magnesium chloride make up 21.2/95.21 or 0.223 formula units, to the justified number of significant digits.
The gram formula unit mass for hydrogen fluoride is 20.01. Therefore, 25.09 milligrams contains (25.09 X 10-3)/20.01 or about 1.254 X 10-3 formula units, to the justified number of significant digits.
(150)/(number of mg in each unit)
150
They can't.They are different units
None. The units are incompatible