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Nitric acid, HNO3 is a colourless, corro...

Nitric acid, `HNO_3` is a colourless, corrosive liquid used in the manufacture of Nitrogen fertilizers and explosives. In an experiment to develop new explosives for mining operations, a 28.5 g sample of `HNO_3` was poured into a beaker. How many moles of `HNO_3` are there in this sample of `HNO_3`?

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