How many grams of Fe2O3 are there in 0.250 mole of Fe2O3?
To find the number of grams of Fe2O3 in 0.250 moles of Fe2O3, we need to know the molar mass of Fe2O3.
The molar mass of Fe2O3 can be calculated by adding up the molar masses of its constituent elements.
Molar mass of Fe (iron) = 55.845 g/mol
Molar mass of O (oxygen) = 15.999 g/mol
In one mole of Fe2O3, there are 2 moles of Fe and 3 moles of O.
Molar mass of Fe2O3 = (2 * molar mass of Fe) + (3 * molar mass of O)
= (2 * 55.845 g/mol) + (3 * 15.999 g/mol)
= 159.69 g/mol
Now, we can calculate the number of grams of Fe2O3 in 0.250 moles.
Number of grams = number of moles * molar mass
= 0.250 mol * 159.69 g/mol
= 39.923 g
Therefore, there are 39.923 grams of Fe2O3 in 0.250 mole of Fe2O3.
To find the number of grams of Fe2O3 in 0.250 moles of Fe2O3, you will need to use the molar mass of Fe2O3 and the given mole quantity.
Step 1: Find the molar mass of Fe2O3.
The molar mass of Fe2O3 can be calculated by adding up the atomic masses of its constituent elements, which are iron (Fe) and oxygen (O).
Molar mass of Fe = 55.85 g/mol (atomic mass of iron)
Molar mass of O = 16.00 g/mol (atomic mass of oxygen)
Fe2O3 consists of 2 iron atoms (2 Fe) and 3 oxygen atoms (3 O). Therefore, the molar mass of Fe2O3 can be calculated as follows:
Molar mass of Fe2O3 = (2 × molar mass of Fe) + (3 × molar mass of O)
Molar mass of Fe2O3 = (2 × 55.85 g/mol) + (3 × 16.00 g/mol) = 159.70 g/mol
Step 2: Calculate the grams of Fe2O3.
Now that you have the molar mass of Fe2O3, you can calculate the grams of Fe2O3 using the given mole quantity.
Grams of Fe2O3 = Molar mass of Fe2O3 × Moles of Fe2O3
Grams of Fe2O3 = 0.250 mol × 159.70 g/mol = 39.925 g
Therefore, there are approximately 39.925 grams of Fe2O3 in 0.250 moles of Fe2O3.
180.0
Notice the mol cancels out and you're left with grams.
(0.250 mol Fe2O3)*(molar mass (in grams) Fe2O3/1 mol Fe2O3)