**Contents**show

The mass of 5 moles of Fe203 is 798.5 grams.

## What is the mass in grams of 2 moles of iron III oxide?

The molar mass of O_{2} is 2 x 16.00 or 32.00 grams (1 mole O_{2} = 32.00 grams O_{2}). The mass of a mole of Fe_{2}O_{3} is (2 x Fe) + (3 x Oxygen) = (2 x 55.845) + (3 x 16.00) = 159.69 grams (1 mole of Fe_{2}O_{3} = 159.69 grams Fe_{2}O_{3}).

…

Weekly Web Work | Our Chemical World | Keys to Success |
---|---|---|

Absence Excuse Form | Archive | Schedule |

## What is the mass in grams of 4 moles of iron III oxide Fe2O3 )?

it can be stated that 4 mole Fe ~ 3 mole molecular O2 to form Fe2O3. It is known that the atomic weight of Fe (III) is 55.845 Dalton (g/mole), then 16.7 g Fe (III) = [16.7 g]/[55.845 g/mole] or 0.3 mole Fe.

## How many moles are in 5 grams of iron?

Iron has a molar mass of 55.84 grams/mole. So, five grams divided by 55.84 grams/mole gives us 0.089 moles of iron.

## What is the mass of 5.00 moles of iron III oxide?

The mass of 5 moles of Fe203 is 798.5 grams.

## What is the mass of O2?

One mole of oxygen gas, which has the formula O_{2}, has a mass of 32 g and contains 6.02 X 10^{23} molecules of oxygen but 12.04 X 10^{23} (2 X 6.02 X 10^{23}) atoms, because each molecule of oxygen contains two oxygen atoms.

## How many grams are there in 5 moles of water?

From this you can see that 5 moles of hydrogen gas would react with 2.5 of the available 3 moles of oxygen gas, to form 5 moles of water. The molar mass of water is 18 g/mol, so you would end up with 5 x 18 = 90 g of water.

## What is the mass of 4.00 moles of Fe?

The mass (m) of Fe is: [55.9 g/mol × 4.50 moles] = 251.6 grams. Note: It is rounded to the nearest one decimal place. 4.50 moles of Fe should give you 251.6 grams of Fe.

## How do you find the mass of iron?

Luckily, it’s been done for you! Just find a periodic table, or go to p-table.com. Find iron (“Fe”) and you’ll see a number above it (26) and a number below it (usually) like 55.85. This is both the average mass of an iron atom (in amu) and the molar mass (in g/mol).

## What is the mass in grams of 5 moles of Fe?

5 moles of Fe weigh=55.845/1 x 5=279.225g.

## How many moles does o have?

One mole of oxygen atoms contains 6.02214179×1023 oxygen atoms. Also, one mole of nitrogen atoms contains 6.02214179×1023 nitrogen atoms.

…

Applications of the Mole.

Known Information | Multiply By | Result |
---|---|---|

Mass of substance (g) | 1/Molar mass (mol/g) × Avogadro’s constant (atoms/mol)) | Atoms (or molecules) |

## What is the mass of 1 mole of iron?

Thus, since the atomic mass of iron is 55.847 amu, one mole of iron atoms would weigh 55.847 grams.