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Sagot :
There are about 1.27 × 10^23 molecules present in 13.5 g of SO2.
What are molecules?
A molecule is the simplest part of a compound that have independent existence.
Number of moles of sulfur dioxide = 13.5 g/64 g/mol = 0.211 moles
If 1 mole of SO2 contains 6.02 × 10^23 molecules
0.211 moles of SO2 contains 0.211 moles × 6.02 × 10^23 molecules/1 mole
= 1.27 × 10^23 molecules
32 g of sulfur contains 6.02 × 10^23 atoms
x g of sulfur contains 2.23 x 10^23
x = 32 × 2.23 x 10^23 /6.02 × 10^23
x = 11.85 g
6.02 × 10^23 formula units has a mass of AgF = 127 g
x formula units has a mass of = 42.15 g
x = 6.02 × 10^23 × 42.15/127
x = 2 × 10^23 formula units
6.02 × 10^23 formula units of Fe2O3 has a mass of 160 g
8.83 x 10^23 formula units of Fe2O3 has a mass of 8.83 x 10^23 x 160 g/6.02 × 10^23
x = 235 g
Learn more about formula unit: https://brainly.com/question/19293051
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