What is the molecular weight of Ca(OH)2? (atomic weights Ca=40, O=16, H=1)Group of answer choices52742638

The molecular weight of Ca(OH)2 is calculated by adding the atomic weights of its constituent atoms.

First, let's break down Ca(OH)2:

• It has 1 atom of Calcium (Ca), 2 atoms of Oxygen (O), and 2 atoms of Hydrogen (H).

Now, let's calculate:

• The atomic weight of Calcium (Ca) is 40.
• The atomic weight of Oxygen (O) is 16, but since there are 2 atoms of Oxygen, we multiply 16 by 2 to get 32.
• The atomic weight of Hydrogen (H) is 1, but since there are 2 atoms of Hydrogen, we multiply 1 by 2 to get 2.

Finally, add these all together:

40 (for Ca) + 32 (for O) + 2 (for H) = 74

So, the molecular weight of Ca(OH)2 is 74.