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Question:
What is the Mr of CaCO₃?
Author: yxng.edxnAnswer:
Ca atomic mass = 40 C atomic mass = 12 }. 100g/mol O atomic mass = 16 × 3 = 48 We multiplied the atomic mass of oxygen by 3 because there were 3 atoms in the compound. This means that the atomic mass was tripled.
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yxng.edxn