Which one will have more number of atoms 100g Sodium or 100g Iron ?(atomic
mass sodium =23u, Iron=56u)
Answers
Answer:
search-icon-header
Search for questions & chapters
search-icon-image
Class 11
>>Chemistry
>>Some Basic Concepts of Chemistry
>>Stoichiometry and Stoichiometric Calculations
>>Which has more number of atoms, 100 gram
Question
Bookmark
Which has more number of atoms, 100 grams of sodium or 100 grams of iron. [Given, the atomic mass of NA=23 u, Fe=56 u]
Medium
Solution
verified
Verified by Toppr
Given, Mass of Na = 100g ; Molar mass of Na= 23 g
No. of moles of Na =
23
100
= 4.347
No. of atoms of Na = 4.35 x N
A
(N
A
is the Avagadro's Number)
Given, Mass of Fe = 100g ; Molar mass of Fe= 56 g
No. of moles of Fe =
56
100
= 2.10
No. of atoms of Fe = 2.10 x N
A
(N
A
is the Avagadro's Number)
So, Na has more no. of atoms.
Iron will have less atoms and sodium will have more