Calculate the pH of the following solutions :
0.3 g of `Ca(OH)_2` dissolved in water to give 500 mL of solutions.

Explanation

To calculate the pH of a solution containing 0.3 g of calcium hydroxide (Ca(OH)₂) dissolved in 500 mL of water, we can follow these steps:

### Step 1: Calculate the Molar Mass of Calcium Hydroxide
The molar mass of calcium hydroxide (Ca(OH)₂) can be calculated as follows:
- Calcium (Ca) = 40.08 g/mol
- Oxygen (O) = 16.00 g/mol (2 oxygen atoms)
- Hydrogen (H) = 1.01 g/mol (2 hydrogen atoms)

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