Question

What is the atomic mass of calcium carbonate.

Answer 1

Hint: In order to solve this question we will have the have the knowledge of the chemical formula of the calcium carbonate then we will have to know the individual mass of the atom present in that chemical formula then we will calculate the number of each type atom present and then calculate the atomic mass of the calcium carbonate.

Complete step by step answer:
For solving this question we will first have the knowledge of the chemical formula of the calcium carbonate so the formula of the calcium carbonate will be $CaC{O_3}$ .
Now as individuals we know that calcium has the atomic mass 40, the atomic mass of carbon is 12 and the atomic mass of oxygen is 16.
As we can see that the number of calcium atoms present in this chemical formula is 1, the number of atoms present is 1 and the number of oxygen atoms present are 3. Now we will multiply each by the number of atoms of that element.
$1 \times 40 + 1 \times 12 + 3 \times 16$
On further solving this we will get:
$40 + 12 + 48$
Now we will get the final answer which will be equal to 100.

Note: While solving these types of questions we should keep in mind that we have to put the value of the molecular mass of individual compounds correctly and first calculate the number of atoms present of the same type accurately.