1. Determine both the formula mass of ammonium carbonate, (NH4)2CO3
2.How many moles of atoms of each element are there in one mole of (NH4)2CO3
3. What is the mass in grams of 3.25 mol Fe2(SO4)3?
2007-03-22 15:30:19 · 3 answers · asked by SiR SmoKe a LoT 1 in Science & Mathematics ➔ Chemistry
1. 98.012 g
2. 6.02x10^23 atoms
3. 62.92 g
2007-03-22 15:35:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋
You just need to look at your Periodic Table.
Add up the atomic mass of each element in (NH4)2CO3 and you have the formula mass. Don't forget to count the atoms in the NH4 component twice.
There will be one mole of atoms for each element in 1 mole of the compound. Don't forget to count twice as mentioned above
Add up the molar mass of each element and multiply by 3.25
2007-03-22 15:34:35 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋
3. 1300 g Fe2(SO4)3
2007-03-22 15:34:53 · answer #3 · answered by d4l1428 1 · 0⤊ 0⤋