Question

Calculate the number of particles in 46 gram of magnesium atoms.​

Answer 1

Answer:

Calculate the number of particles in 46 gram of any atoms

• frist we have to divide mass of Na w.r.t molar mass of Na. #) molar mass of Na =23 gm/mol. #) no of moles of Na =46/23. =2mol.
• than we easily get the no of moless. no of atoms in Na =2 * avocadro no= 2 * 6.03 *10^23 =12.06 *10^23 atom.
• than we have to multiply the no of moless wd avocadro no.

Answer 2

Number of particles = No: of moles × Avogadro no :

Given mass of Na (Sodium) = 46 g

Molar mass of Na = 23 g

No: of moles = Given mass ÷ Molar mass

= 46 ÷ 23

= 2 moles

∴ Number of particles = 2 moles × 6.022 × 10²³

= 12.044 × 10²³