Some Basic Concepts Of Chemistry Question 83

Question: The mass of BaCO3 produced when excess CO2 is bubbled through a solution of 0.205 mol Ba(OH)2 is:

Options:

A) 81 g

B) 40.5 g

C) 20.25 g

D) 162 g

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Ba(OH)21,mol,+CO2BaCO31,mol,+H2O

1,mol,Ba(OH)2=1mol,BaCO3

0.205molBa(OH)2=0.205molBaCO3 Wt. of substance = No. of moles x Molecular Mass =0.205×197.3=40.5g



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