Answer:
207.89g
Explanation:
The formula of the compound is:
Fe₂S₃
Find the molar mass of the compound;
Atomic mass of Fe = 55.845g/mol
S = 32.065g/mol
Now;
Molar mass of Fe₂S₃ = 2 (55.845) + 3 (32.065)
= 207.89g
You would have to use the ideal gas law for this:
PV=nRT
Pressure, Volume, n=moles, R gas constant, Temperature in Kelvin
P=nRT/V
(1.8mol)(62.36)(309K)/43.0L = 805mm Hg
Answer:
the freezeng point of solution is -12°c b/c it dencity is 0.854 formula =
The carbon dioxide<span> in the atmosphere dissolves in rainwater forming carbonic acid, which, once in contact with rocks, slowly dissolves them.</span>