What mass of hydrogen contains the same number of atoms as 5.83 g of nitrogen?
I have no idea how to do this! =( It's my last question!
2007-03-18 13:59:56 · 4 answers · asked by nomad 2 in Science & Mathematics ➔ Chemistry
Work out how many moles of Nitrogen are in 5.83g.
Then times the number of moles by the molecular mass of hydrogen to give you your answer.
This works since there is the same number of atoms in one mole of nitrogen as there is in one mole of hydrogen. Moles referring to a constant number of atoms.
2007-03-18 14:12:57 · answer #1 · answered by Torrion 1 · 0⤊ 0⤋
you need to determind the number of atoms in 5.83g of nitrogen, and then determine the mass of that number of atoms of hydrogen.
I assume since this was assigned in your homework, you know how to go from mass to moles to atoms, or however that works. I haven't done chemistry for a while.
2007-03-18 21:07:59 · answer #2 · answered by Paul B 2 · 0⤊ 0⤋
Hydrogen is a gas. It's formula is H(sub 2). One mole of hydrogen would be 2grams. Nitrogon is also a gas and has the formula of N2. 14 grams of Nitrogen is one mole. 2grams of Hyrdrogen is one mole. This should get you started.
2007-03-18 21:19:36 · answer #3 · answered by cartiphilus 4 · 0⤊ 0⤋
convert the mass of N into grams using the molecular mass of N. The number of mols of N will equal the number of mols of H (since 1 mol = 6.022 x 10^23 atoms) so then just convert the mols into grams of H using the molecular mass of H.
2007-03-18 21:11:54 · answer #4 · answered by anon 4 · 0⤊ 0⤋