Respuesta :
411.984 grams
The atomic mass of Silver is 107.8682 by the periodic chart I have here. That means that 1 mole of Silver masses
107.8682 grams if the Silver is pure.
I mole of any element like silver is also 6.022 X 10^23 atoms of silver.
10^24 atoms is therefore more than a mole. You specified
2.3 x 10^24 atoms, so the number of moles will be
(2.3 X 10^24)divided by 6.022 X 10^23 = 3.819 moles
this number X 107.8682 grams/mole gives us 411.984 grams
413 g of Ag are in 2.30 x 10^24 atoms in silver.
From Avogadro's law, we know that the number of elementary entities in one mole of a substance is given by the Avogadro's number, 6.02 × 10^23 atoms.
In this case, we are told that there are 2.30 x 10^24 atoms in silver. We can find the mass of this number of silver atoms using the Avogadro's number as follows;
1 mole of Ag atoms contain 6.02 × 10^23 atoms
x moles of silver atoms contain 2.30 x 10^24 atoms
x = 1 mole × 2.30 x 10^24 atoms/ 6.02 × 10^23 atoms
x = 3.82 moles of Ag
Mass of 3.82 moles of Ag = 3.82 moles of Ag x 108 g/mol
= 413 g of Ag
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