Some Basic Concepts Of Chemistry Question 324
Question: The number of moles of sodium oxide in $ 620g $ of it is [BHU 1992]
Options:
A) 1 mol
B) 10 moles
C) 18 moles
D) 100 moles
Show Answer
Answer:
Correct Answer: B
Solution:
Sodium oxide $ \to $ $ Na _2O $
Molecular weight = 46 +16 = 62 62gm of $ Na _2O $ = 1 mole 620gm of $ Na _2O $ = 10 mole.
