Why are moles used before converting to grams?

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Why are moles used before converting to grams?

2007-10-07 16:11:07 · 3 answers · asked by Gideon 1 in Science & Mathematics ➔ Chemistry

3 answers

In an equation, one can easily see the moles
for example

2H2 + O2 ---> 2H2O

2 : 1 : 2

Therefore it is easier than using grams

2007-10-07 16:20:01 · answer #1 · answered by Monah 3 · 0⤊ 0⤋

Atoms react with other atoms. SInce each atom is a different mass, the atoms react with each other in a ratio of their respective masses.

Moles are simply a multiple of the the mass of each atom. They react in the same ratio.

2007-10-07 23:14:14 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋

because u need to know how many molecules of the substance there are before u can calculate how much they weigh.

2007-10-07 23:13:57 · answer #3 · answered by mech9x 2 · 0⤊ 0⤋