When `BaBr_(2)` , is heated in a stream of chlorine, it is completely converted to `BaCl_(2)` ,. From 1.50 g of `BaBrA_(2)` just 1.05 g of `BaCl_(2)` , is obtained. Calculate the atomic weight of Ba from this data.

Explanation

To calculate the atomic weight of barium (Ba) from the given data, we can follow these steps:

### Step 1: Write the balanced chemical reaction
The reaction of barium bromide (BaBr₂) with chlorine (Cl₂) to form barium chloride (BaCl₂) can be represented as:
\[ \text{BaBr}_2 + \text{Cl}_2 \rightarrow \text{BaCl}_2 + \text{Br}_2 \]

### Step 2: Determine the molar masses of the compounds
- Molar mass of BaBr₂:
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