0.759 g of silver salt of a dibasic acid was ignited to form 0.463 g of the silver residue. Calculate the molecular mass of the acid.

Explanation

To calculate the molecular mass of the dibasic acid from the given data, follow these steps:

### Step 1: Determine the mass of silver in the residue
The mass of silver salt is given as 0.759 g, and the mass of the silver residue after ignition is 0.463 g.

### Step 2: Calculate the mass of silver salt
The mass of silver in the silver salt can be calculated using the formula:
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