A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure: Find the number of moles of hydrogen present.
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure:
Find the number of moles of hydrogen present.
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1 kg = 1000 grams
2 g of hydrogen molecules = 1 mole
1 g of hydrogen molecules = 1/2 mole
1000 g of hydrogen molecules = 1/2 x 1000 = 500 moles
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