Pure magnesium's formula would just be Mg because all elements except for 7 nonmetals are just left alone when they are by themselves in a formula. The 7 diatomic elements( means they have to have two of them without another element attached to it aka. a subscript two after it when it's by itself) are hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine. An easy way to remember the diatomic seven is that when looking at a periodic table if you trace over them from nitrogen over to fluorine and down to iodine all of those elements are diatomic + hydrogen.
And your unbalanced and balanced equations are correct.
(sorry I went on a tangent with the diatomic rules hopefully it will help you in the future though)
Answer:
π = 7.33atm
Explanation:
Osmotic pressure is defined as the pressure that must be applied to stop the mass transfer when a semipermeable membrane separates it of pure water. The equation is:
π = M×R×T
Where P is osmotic pressure
M is molar mass = 0.30M
R is gas constant = 0.082atmL/molK
And T is absolute temperature = 25°C + 273.15 = 298.15K
π = 0.30M×0.082atmL/molK×298.15K
<h3>π = 7.33atm</h3>
