Only one isotope of this element occurs in nature. One atom of this isotope has a mass of 9.123x10^-23g. Identify the element and give its atomic mass.
2007-09-05 06:30:52 · 3 answers · asked by live in the moment 2 in Science & Mathematics ➔ Chemistry
use this formula,
No. of particle = Mol x [6.02 x 10^23]
1 atom =[mass/molar mass] x 6.02 x 10^23
1 atom =[(9.123 x 10^23) / molar mass] x 6.02 x 10^23
you find the molar mass.
from the molar mass, you can find from the periodic table which element it is.
2007-09-05 06:37:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Multiply the mass of one atom by Avogadro's number. This gives you the mass of one mole.
9.123e-23 x 6.02e23 = 54.92 g/mole
Checking the CRC Handbook, I see that there's only one stable isotope of Manganese, with at. wt. 54.94.
2007-09-05 06:43:58 · answer #2 · answered by Mark H 3 · 0⤊ 0⤋
Multiply this value by Avogadro's number. This will give the relative atomic mass. (Probably fluorine, but you'll have to do the calculations!)
2007-09-05 06:37:50 · answer #3 · answered by Gervald F 7 · 0⤊ 0⤋