Molecular mass of an acid = Equivalent mass x ......

Explanation

To find the relationship between the molecular mass of an acid and its equivalent mass, we can use the following formula:

### Step-by-Step Solution:

1. **Understanding Equivalent Mass**:
The equivalent mass of an acid is defined as the mass of the acid that can donate one mole of protons (H⁺ ions) in a reaction.

2. **Formula for Molecular Mass**:
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