Silicon is the most common metalloid and its symbol is Si. It is a chemical element with atomic number 14. The atomic mass of the silicon is 28 a.m.you (atomic mass unit). The molar mass of silicon is approximately 28 grams.
Moles = given mass / molar mass
given mass = 15.6 grams
Moles = 15.6 grams / 28 grams
Moles= 0.557
According to the Avogadro's number, one mole has 6.022 x 1023 atoms.
Atoms in 15.6 grams of silicon= 0.557 x 6.022 x 1023 atoms
Atoms in 15.6 grams of silicon= 3.36 x 1023 atoms
Moles = given mass / molar mass
given mass = 15.6 grams
Moles = 15.6 grams / 28 grams
Moles= 0.557
According to the Avogadro's number, one mole has 6.022 x 1023 atoms.
Atoms in 15.6 grams of silicon= 0.557 x 6.022 x 1023 atoms
Atoms in 15.6 grams of silicon= 3.36 x 1023 atoms
