400 kg KI
Explanation:
We assume that the density of water is 1 kg/L and it means that 1000 L of water are equal to 1000 kg of water
To solve this question we use the following formula:
concentration / 100 = mass of the dissolved / mass of the solution
mass of the dissolved KI = (concentration × mass of the solution) / 100
mass of the dissolved KI = (40 × 1000) / 100 = 400 kg
Learn more about:
mass percent concentration
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