Chemistry, asked by phonilnvijaya, 1 year ago

calculate the number of particles in 46 g of sodium atoms

Answers

Answered by chayat
370
no of moles of Na = mass of Sodium/molar mass 

1) 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 

2) 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

3) than we have to multiply the no of moless wd avocadro no.

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Answered by Anonymous
678
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


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