Question

calculate molecular weight of chalk with process

Answer 1

Answer:

100 .o86 g/mol

Explanation:

CaCO3 is right answer

Answer 2

The molecular weight of chalk is 100 g/mol

Explanation:

Molecular weight is defined as the mass which is calculated by the addition of masses of respective elements, each multiplying by its number of atoms.

The molecular formula of chalk is $CaCO_3$. It contains one calcium atom, one carbon atom and three oxygen atoms.

Molar mass of calcium carbonate $CaCO_3$ =$1\times 40+1\times 12+3\times 16=100g$

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