50.0 g sample of brass is dissolved in 1 L dil `H_2SO_4.20mL` of this solution is mixed with KI, and the liberated `I_2` required 20 " mL of " 0.5 M hypo solution for titration calculate the amount of Cu in the alloy.

Explanation

To solve the problem step by step, we will follow the outlined procedure based on the information provided.

### Step 1: Understand the Reaction
Brass is an alloy primarily composed of copper (Cu) and zinc (Zn). When brass is dissolved in dilute sulfuric acid (H₂SO₄), copper reacts to form copper sulfate (CuSO₄). The liberated iodine (I₂) from the reaction with potassium iodide (KI) is then titrated with sodium thiosulfate (hypo solution).

### Step 2: Calculate Milliequivalents of Iodine
The amount of iodine liberated can be determined from the titration. The formula for milliequivalents (mEq) is:
\[ \text{mEq} = \text{Normality} \times \text{Volume (mL)} \]
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