Number of sodium atoms in each
1. First of all we need to find number of moles of sodium.
➝ Number of moles of sodium = Given mass of sodium ÷ Molar mass of sodium
➩ Number of moles of sodium = 0.46 g ÷ 40 g
➩ Number of moles of sodium = 0.0115 moles
➝ Number of atoms of sodium = Number of moles of sodium × Avogadro's number
➩ Number of atoms of sodium = 0.0115 × 6.02 × 10²³
➩ Number of atoms of sodium = 0.06923 × 10²³
➩ Number of atoms of sodium = 6.923 × 10²¹ atoms
________________________________
2.
➩ Number of atoms of sodium = 0.8 × 6.02 × 10²³
➩ Number of atoms of sodium = 4.816 × 10²³ atoms
Hmm ab to pehlay bio ki he aarti pyar ne paday ge (O_O)
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Given :
To find :
Number of sodium atoms in each
Formula used :
Solution :
1. First of all we need to find number of moles of sodium.
➝ Number of moles of sodium = Given mass of sodium ÷ Molar mass of sodium
➩ Number of moles of sodium = 0.46 g ÷ 40 g
➩ Number of moles of sodium = 0.0115 moles
➝ Number of atoms of sodium = Number of moles of sodium × Avogadro's number
➩ Number of atoms of sodium = 0.0115 × 6.02 × 10²³
➩ Number of atoms of sodium = 0.06923 × 10²³
➩ Number of atoms of sodium = 6.923 × 10²¹ atoms
________________________________
2.
➝ Number of atoms of sodium = Number of moles of sodium × Avogadro's number
➩ Number of atoms of sodium = 0.8 × 6.02 × 10²³
➩ Number of atoms of sodium = 4.816 × 10²³ atoms
________________________________
ANSWER :
Hmm ab to pehlay bio ki he aarti pyar ne paday ge (O_O)