A compound contains 2.8% Fe by mass.If the compound contains single Fe atom in its one molecule, then the molar mass(g/ml) of the compound is? (Fe=56 amu)
The answer is 2000.
The answer is 2000.
2 Answers
Mar 6, 2018
You get 2,000 by basically dividing then multiplying.
Explanation:
If iron, with 56 amu, therefore 56 grams/mol, composes 2.8% of the mass, then for every 2.8% of mass, 56 grams/mol is added to the molar mass.
That means about 35.714 2.8 percents in the whole compound, so multiply 56 by 35.714~.
Therefore, molar mass of 2,000 grams/mol.
Mar 6, 2018
The molar mass of the compound is 2000 g/mol.
Explanation:
Let's do this by the unitary method.
If the mass of one molecule is 2000 u, the mass of one mole is 2000 g.