What is the mass of 5 mole of ammonia?

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What weight of ammonia contains the same number of molecules as 11.2 liters of oxygen at STP?

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In the synthesis of sodium carbonate by Solvay (or ammonia soda) process the recovery of ammonia is done by treating NH4Cl with Ca(OH)2. The by-product obtained in the process is —

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Ammonia contains 82.35% of nitrogen and 17.65% hydrogen. Water contains 88.9% of oxygen and 11.1% of hydrogen. Nitrogen dioxide contains 63.15% of oxygen and 36.85% of nitrogen. Show by calculations from these data which law of chemical combination is verified.

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Ammonia NH3 (gas) combines with oxygen gas over Pt catalyst to produce Nitric oxide (NO) and water. If 27.2 g of NH3 gas is taken initially then :

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What is the mass of 5 mole of ammonia?

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