Answer:
yes you can by using filtration and evaporation
As the given <span>moles OF ethanol = 0.040
now will find water moles that will b
moles of water = 1 - 0.040=0.96 (substract 1 from etahnol mole fraction)
now the
mass of water = 0.96 mol x 18.02 g/mol=17.3 g where 18 is atomic mass of water
mass of ethanol = 0.040 x 46 g/mol =1.84 g
now
mass of solution = 17.3 + 1.84=19.1 g that is mass of water +mass of etanol
Now
assume that the density of the solution = 1g/mL
so the
volume ofsolution = 19.1 mL = 0.0191 L
so finally the molarity will be
M = 0.040/ 0.0191=2.1
hope it helps</span>
The electronic structure of Magnesium is 2,8,2
so in order to form a stable ions, it will lose 2 electrons.
Now, the proton number of Mg is 12, electron number is 10.
It will show positive charge.
Conclusion: Mg will lose 2 electrons to form Mg2+.
In a liquid, the expansion is a little more than in
solids. The bonds in a liquid are weaker than in a
solid, so as you heat up a liquid, the particles can
move around each other faster and in so doing,
move further apart. Solids and liquids occupy a
'set' volume at a certain temperature.
