8 How many kilograms of sodium are needed to produce 2.24 L of hydrogen collected at 23°C and 92.5 kPa? 2Na (s) + 2H₂O (1)→2NaOH (aq) + H₂ (g) (1 kPa = 0.01 atm, 1 g = 0.001 kg)

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