How much positive and negative charge is there in a cup of water ?

Explanation

To determine the amount of positive and negative charge in a cup of water, we can follow these steps:

### Step 1: Determine the mass of water
Assume we have a cup containing 250 grams of water.

### Step 2: Find the molecular weight of water
The molecular formula for water is H₂O. The molecular weight can be calculated as follows:
- Hydrogen (H) has a molecular weight of approximately 1 g/mol, and there are 2 hydrogen atoms in water.
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