What volumes of 10N HCl and 2N HCl should you mix to obtain 4 litres of 5N HCl solution ?

Explanation

To solve the problem of mixing 10N HCl and 2N HCl to obtain 4 liters of 5N HCl, we can follow these steps:

### Step 1: Define Variables
Let:
- \( V_1 \) = volume of 10N HCl (in liters)
- \( V_2 \) = volume of 2N HCl (in liters)

Since we want a total volume of 4 liters, we can express this as:
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