Fe, or iron, has a molar mass of 55.845 grams per mole. This means that 0.2 moles is equal to 11.2 grams of iron.
The mass of 0,005 moles of Fe is 0,279 g.
molar mass Fe = 55.845g/mol 2.25 moles Fe x (55.845g/mol) = 126g
For this you need the atomic mass of Fe. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.82.5 moles Fe / (55.9 grams) = 1.48 moles Fe
For this you need the atomic mass of Fe. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel..410 grams Fe / (55.9 grams) = .00733 moles Fe
What is the molar mass of Fe(NO3)2
388.grams Fe divided by mass of Fe 388.2g/55.85= 6.95moles of Fe
4 mols Fe * 55.845(mass of iron)=223.38g
Find iron (Fe) on the periodic table the biggest number (at the bottom) is the mass number 1 mole is that number in grams. you can work it out from there.
There are 126 g of Fe in 2.25 moles of Fe. To calculate this, multiply 2.25 moles by 55.845 g (the atomic weight of Fe) over 1 mole. You then get 125.65125 g, but since the supplied number of moles has three significant digits, your final answer is 126 g.
0.10 moles iron (55.85 grams/1 mole Fe) = 5.6 grams of iron ==============
2.56 X 10^-3 moles iron (55.85 grams/1 mole Fe) = 0.143 grams of iron
Approx 3.997 moles.
200 (mol) * 56.0 (g/mol) = 11,200.0 grams
The molar mass of iron is 55.845 g/mol. Multiply the moles of iron by its molar mass.2.88 mol Fe x (55.845 g Fe)/(1 mole Fe)=161 g Fe (rounded to three significant figures)
Fe(NO3)2molecular weight. Molar mass of Fe(NO3)2= 179.8548 g/mol. This compound is also known as Iron(II) Nitrate. Convert grams Fe(NO3)2to moles or moles Fe(NO3)2to grams.
For this you need the atomic mass of Fe. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.82.5 grams Fe / (55.9 grams) = 1.48 moles Fe
4 moles - APEX
2:1, Two moles of Fe produce 1 mole of Fe2O3.
7.5 moles.There are 3 x 2.5 = 7.5 moles Fe in 2.5mole Fe3O4
okay, it does not tell us how much iron reacted with oxygen, so we assume that iron reacted completely. just convert grams iron used into moles. 85.65g Fe/55.85g Fe X 1 mole Fe = 1.534 moles Fe btw the empirical formula you should get is Fe3O4
The number of moles in 14,1 g of Fe is 0,252.
200 grams Fe (1 mole Fe/55.85 grams) = 3.58 moles of iron --------------------------
1.00274 moles