Question
In: Chemistry
What is the precentage by mass of oxygen in CaCO3?
What is the precentage by mass of oxygen in CaCO3?
Solutions
Expert Solution
Mass of Ca = 40.08 g
Mass of C = 12.01 g
Mass of O : 16.00 x 3 = 48.00
Therefore the total mass of the CaCO3 = 40.08 + 12.01 + 48.00
= 100.09 g
Now determine the % of each elementof the molecule using the
following formula:
Mass of part / total mass x 100 = Ca
=40.08 / 100.09 x 100
= 40.04 % Ca
For Carbon
=12.01
/ 100.09 x 100
= 12.00 % C
For
Oxygen
= 48.00 / 100.09 x 100
= 47.96 % O
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