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Grade: 12th pass 

                        
The molecular weight of calcium carbonate CaCO 3 is: (A) 80 (B) 90 (C) 100 (D) 110
one month ago

Answers : (2)

Vikas TU
12277 Points 
							
Dear student 
Molecular weight of Ca = 40
Molecular weight of C = 12 
Molecular weight of O = 16 
Molrcular weight of CaCO 3 = 100 g/mol
 
one month ago
Vikas Amritiya
askIITians Faculty
158 Points 
							
Molecular weight is the mass of whole molecule.
Steps:- (1) Chemical formula of calcium carbonate ⟶CaCO3​
(2) Mass of Calcium⟶40
     Mass of Carbon⟶12
     Mass of Oxygen⟶16
(3) Multiply mass of each element by number of atoms of that element.
(4) Add all the masses obtained after multiplication.
⟶CaCO3​
=1×40+1×12+3×16
=40+12+48
=100.
one month ago
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