Question

Nitu presented a silver lamp to her mother on her birthday. The lamp contained 3.011*10raise to power 23 atoms of silver in it what is the mass of the lamp and the cost of it, if 1 gram of silver costs rupees 60? Atomic mass of Ag=108u,Avagadro,'s no =6.022*10 to the raise power 23 per mol.

Answer 1

Given ;
no. of atoms = 3.011 × 10^23
Atomic mass = 108 u
N• = 6.022×10^23
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No of gram molecular mass :
= (No. of moles) × Atomic mass
= { (no. of atoms)/(Avogadro's no.) } × Atomic mass
= { (3.011×10^23)/(6.022×10^23) } × 108
= (1/2) × 108
= 54 g
_______________________
Cost
= mass × Rate
= 54×60
= Rs. 3240
_______________________

Answer 2

Answer:

Explanation:

Given ;

no. of atoms = 3.011 × 10^23

Atomic mass = 108 u

N• = 6.022×10^23

============================

No of gram molecular mass :

= (No. of moles) × Atomic mass

= { (no. of atoms)/(Avogadro's no.) } × Atomic mass

= { (3.011×10^23)/(6.022×10^23) } × 108

= (1/2) × 108

= 54 g

_______________________

Cost

= mass × Rate

= 54×60

= Rs. 3240

_______________________