What volume at `STP` at ammonia gas will be required to be passed into `30 mL` of `N H_(2) SO_(4)` solution to bring down the acid normality to `0.2 N`?

Explanation

To solve the problem of determining the volume of ammonia gas (NH₃) required to be passed into 30 mL of sulfuric acid (H₂SO₄) solution to bring down the acid normality to 0.2 N, we can follow these steps:

### Step 1: Calculate the initial equivalents of H₂SO₄
The normality (N) of sulfuric acid is equal to its molarity (M) multiplied by the number of equivalents. For H₂SO₄, which has 2 acidic protons, the normality is twice the molarity.

Given that the volume of H₂SO₄ solution is 30 mL, we can assume its normality is 1 N (as is common in such problems unless specified otherwise).

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