The mass in grams of 1 atomic mass unit is 1.661·10-24 g. Use this value to calculate the average mass of one atom of oxygen.
2007-05-28 04:30:58 · 3 answers · asked by Ryan C 1 in Science & Mathematics ➔ Chemistry
well, g/mol = amu. The g/mol of oxygen is 16 g/mol, as seen by looking at a periodic table. This means that an atom of oxygen is 16 amu.
16 amu * 1.661 * 10 ^ -24 g = your answer,
2.658 * 10 ^ -23 g
2007-05-28 04:41:21 · answer #1 · answered by Verdad 2 · 0⤊ 0⤋
You have a real problem here. Atomic nuclei have binding energy (which is negative, of course - a minimum) that has mass equivalent, m = E/c^2. Most elements have a natural isotope distribution - including oxygen. The question is therefore garbage vs. the real world.
Toss a sop to your idiot teacher. Multipy the amu times the sum of protons and neutrons.
2007-05-28 11:38:53 · answer #2 · answered by Uncle Al 5 · 0⤊ 1⤋
Use the Avogadro Number.
2007-05-28 11:47:49 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋