Find the total percentage of magnesium in magnesium nitrate crystals `[Mg(NO_(3))_(2).6H_(2)O]`
[Mg=24, N=14, O=16,H-1]

Explanation

To find the total percentage of magnesium in magnesium nitrate crystals \([Mg(NO_{3})_{2} \cdot 6H_{2}O]\), we will follow these steps:

### Step 1: Calculate the molar mass of magnesium nitrate crystals

1. **Identify the components of the formula**:
- Magnesium (Mg): 1 atom
- Nitrogen (N): 2 atoms
- Oxygen (O): 6 atoms from nitrate + 6 atoms from water
...