1. the hydrogen released by the reaction of 90 grams of nitric acid on aluminum, was...

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Chemistry

1. the hydrogen released by the reaction of 90 grams of nitricacid on aluminum, was used to make ammonia. How many grams ofammonia were formed ? 3. How many grams of copper(II) oxide can beformed by the oxygen liberated when 150 grams of mercuric oxide areddecomposed? 4. the iodine formed when 20 grams of chromic iodideare electrolyzed is reacted with sodium . how many moles of sodiumiodide are formed? 5. A sample MgO was first dissolved inhydrochloric acid to give a solution of MgCl2 and was thenconverted to a precipitate of pure, dry Mg2P2O7 weighting 12.00g.calculate the sample of MgO.

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2Al 6HNO3 2 AlNO33 3H2 2 moles 6 moles 3 moles 6 moles of HNO3 react Al to from 3 moles of H2 663 gm HNO3 react with Al to from 32 gm of H2 90 gm of HNO3 react with Al to from 6 90378 143 gm of H2 N2 3H2 3NH3 2 See Answer

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