16.3 grams Sr (1 mole Sr/87.62 grams(6.022 X 1023/1 mole Sr)
= 1.12 X 1023 atoms of strontium
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The number of atoms of lead is 6,68.10e23.
149 g of calcium contain 22,39.10e23 atoms.
27,30.10e23 atoms
6.14x1019 atoms Au
1.6 g C x 1 mol C/12 g x 6.02x10^23 atoms/mol = 8.1x10^22 atoms
163 kg = 163 000 gTo convert from kg to g, multiply by 1000.
No. 1.63 kg is larger than 163 g.1.63 kg = 1630 g > 163 g
17.24 g Sr * 1 mol/87.62 g Sr = 0.1968 mols Sr
1 mol of fluorine atoms (F) is 18,998 403 163(6) g.
The number of atoms of lead is 6,68.10e23.
49.1740 g (6.02 x 1023 atoms) / (91.22 g) = 3.25 x 1023 atoms
149 g of calcium contain 22,39.10e23 atoms.
6,687.1023 chlorine atoms
27,30.10e23 atoms
The number of atoms of lead is 6,68.10e23.
78.96 g of selenium will have 6.023 x 1023 atoms. So, 30.4 g of selenium will have 2.32 x 1023 atoms.
5 g of sulfur contain 0,94.10e23 atoms.