Arsenic forms two oxides, one of which contains 65.2% and the other, 75.7% of the element. Determine the equivalent weights of arsenic in both cases.

Explanation

To determine the equivalent weights of arsenic in the two oxides, we will follow these steps:

### Step 1: Understand the Composition of the Oxides
We are given two oxides of arsenic:
- **Oxide 1**: Contains 65.2% arsenic
- **Oxide 2**: Contains 75.7% arsenic

### Step 2: Calculate the Percentage of Oxygen in Each Oxide
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