Molecular Mass Of Polymers

Step 1: Understand the given data. We are asked to find the molecular weight of calcium carbonate,

%5Ctext%7BCaCO%7D_3

. Step 2: Calculate the molar mass of $%5Ctext%7BCaCO%7D_3$ . To find the molecular weight of

%5Ctext%7BCaCO%7D_3

, we sum the atomic masses of all the atoms in the formula. - Calcium (Ca) has an atomic mass of

40.1%20%5C%2C%20%5Ctext%7Bg%2Fmol%7D

. - Carbon (C) has an atomic mass of

12.0%20%5C%2C%20%5Ctext%7Bg%2Fmol%7D

. - Oxygen (O) has an atomic mass of

16.0%20%5C%2C%20%5Ctext%7Bg%2Fmol%7D

, and there are 3 oxygen atoms in

%5Ctext%7BCaCO%7D_3

. So, the molecular weight is:

%5Ctext%7BMolar%20mass%20of%20CaCO%7D_3%20%3D%2040.1%20%2B%2012.0%20%2B%20(3%20%5Ctimes%2016.0)%20%3D%2040.1%20%2B%2012.0%20%2B%2048.0%20%3D%20100.1%20%5C%2C%20%5Ctext%7Bg%2Fmol%7D

Answer: Therefore, the molecular weight of

%5Ctext%7BCaCO%7D_3

is approximately

100%20%5C%2C%20%5Ctext%7Bg%2Fmol%7D

Chapter Questions
1 MCQs