Question

how many S atoms are in 80.25 gram of S​

Answer 1

Answer:

1.5×10²⁴ atoms

Explanation:

1 mole of any substance contains 6.022×10²³ entities, be it atoms, molecules or ions

now if the number of moles of 80.25g of S was found, then the number of atoms can be found by multiplying the number of moles with 6.022×10²³

now number of moles = mass of substance/ relative atomic mass of substance here S has a relative atomic mass of 32 then mole = 80.25/32 = 2.5078 moles the number of atoms = 2.5078× 6.022×10²³ = 1.5×10²⁴ atoms

Answer 2

mole = weight/atomic mass , atomic mass of S is 32 then mole = 80.25/32 , mole of sulphur is 2.50

no. of atom= mole× avagadro no. . no. of S atom = 2.5×6.02×10^23 after solving it no. of S atom is 15.05 ×10^23