A gas cylinder can hold 1 kg of hydrogen at room temperature and pres – InterviewSolution

1.

A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure:Find the number of moles of hydrogen present.

Answer»

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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