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Hydrogen gas has a density of 0.090 g/L. At standard temperature and pressure, one mole of it takes up 22.4 L. Calculate the moles in

Hydrogen gas has a density of 0.090 g/L. At standard temperature and pressure, one mole of it takes up 22.4 L. Calculate the moles in 0.23 kg of hydrogen gas? (Include correct unit symbols.) (4 marks)

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