Question
Molecular formula – $Ca(OH)_2$
✓
Answer
Molecular mass of $Ca(OH)_2 (M)$
$= (Atomic mass of Ca) x 1 + (Atomic mass of O + Atomic Mass of H) x 2$
$= (40 x 1) + (16 + 1) x 2$
$= 40 + (17 x 2)$
$= 40 + 34$
$= 74$
$\therefore$ Molecular mass of $Ca(OH)_2 (M)$
$= 74$
$= (Atomic mass of Ca) x 1 + (Atomic mass of O + Atomic Mass of H) x 2$
$= (40 x 1) + (16 + 1) x 2$
$= 40 + (17 x 2)$
$= 40 + 34$
$= 74$
$\therefore$ Molecular mass of $Ca(OH)_2 (M)$
$= 74$
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