Answer:
The Answer is B
Explanation:
The answer on this problem is b because I got it wrong then b on this question was the right answer.
I think that the answer could be A. X and Y
The molar mass of this compound is 0.004 m/g
Firstly, molar mass is moles/grams so we need to solve for the number of moles and we were already given the grams (205 g).
So to solve for moles we were given 205 g, 20.0 L, 273 K and 1.00 atm. Knowing these numbers we can plug them into the ideal gas law, PV=nRT
where P is pressure, V is volume, n is number of moles, R is the gas constant (in this case it is 0.08206) and T is the temperature.
Next, we use moles and grams to solve for molar mass:
You are looking at a decomposition reaction because the original compound is being broken into its individual elements.<span />