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Ammonia, NH3, is made in the direct reaction between nitrogen and hydrogen. If 280. grams of nitrogen are used,

how many grams of hydrogen are also used?

User Amitchone
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1 Answer

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24 votes

Answer:

The answer is 60 grams of hydrogen.

Step-by-step explanation:

Assuming hydrogen is a non-limited substance, we can calculate the number of mols of nitrogen that are used.

Molar mass of N = 14 grams/mole

280g of N / (14 g / mol) = 20 mols of N

They react in a 1 to 3 ratio. For every 1 nitrogen atom, there are 3 hydrogen atoms.

The molar mass of hydrogen is 1 g / mol.

Because we have 20 mols of Nitrogen and we know we need three times the amount of hydrogen as we do nitrogen, there must be 60 mols of hydrogen.

60 * 1 = 60

The answer is 60 grams of hydrogen.

User Xleon
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