How much does one mole of iron atoms weigh?

Answer 1

Use the equation;

mass=moles*gramformulamass

or

m=n*gfm

m=2*55.8 = 111.6g in two moles of Iron

gfm or the molecular mass of a compound can be found by adding the Relative atomic masses of each element in the compound together.

For example - Carbon dioxide

CO2

The formula contains 1 Carbon atom and 2 Oxygen atoms

(RAMs should be found in a datasheet/book or provided in the question. RAM = relative Atomic Mass)

RAM Carbon = 12 RAM Oxygen = 16

gfm of CO2 = 12 + 32 = 44

or 1mole of CO2 = 44g

Answer 2

One mole of Fe, Iron, weighs about 55.845grams.

One mole of any element equals it's atomic mass in grams.

Examples:

• H, Hydrogen, weighs 1 amu. One mole of Hydrogen weighs 1 gram.
• Hg, Mercury, weighs 200.59 amu. One mole of Mercury weighs 200.59 grams.

Answer 3

A mole of an element is X grams of the element, where X is the number of the elements atomic mass.

The atomic mass of iron is 55.85, so one mole of iron is 55.87 grams.

Two moles of iron is 111.7 grams.

101.7 grams is 101.7/55.85 moles = 1.82 moles.

Answer 4

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

Answer 5

The molecular weight of iron (Fe) is 55.85. Hence, you would have to measure out 55.85 grams of iron to get one mole of it.

Answer 6

how y hydrogen atoms are in 35.0 grams of hydrogen gas

Answer 7

0,1 mole of iron contain 5,5845 grams iron.

Answer 8

One mole of iron atom weighs 56g

Answer 9

0.03