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Water under pressure problem-henry law

Can someone help me in going through this problem. The statement “When 0.003 moles of a gas are dissolved in 900 gm of water under a pressure of 1 atm, 0.006 moles will be dissolved under the pressure of 2 atm", signfies:

(a) Dalton’s law of partial pressure (b) Graham’s law (c) Raoult’s law (d) Henry’s law

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