Henry's constant for argon is 40K bar in water, determine molal concentration of argon in water when it is stored above water at 10 bar pressure

Explanation

To determine the molal concentration of argon in water when it is stored above water at a pressure of 10 bar, we can apply Henry's law. Here’s a step-by-step solution:

### Step 1: Understand Henry's Law
Henry's law states that the amount of gas that dissolves in a liquid at a given temperature is proportional to the partial pressure of that gas above the liquid. The formula is given by:
\[ P = K_H \cdot X \]
where:
- \( P \) = partial pressure of the gas
- \( K_H \) = Henry's law constant
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