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pishuonlain [190]
3 years ago
9

What amount of ammonia, NH3(g), can be produced from 15 mol of hydrogen reacting with excess nitrogen?

Chemistry
1 answer:
ehidna [41]3 years ago
3 0

Answer:

10mol

Explanation:

3H2 + N2 -> 2NH3

Stoichiometry is a tool that chemists can use to find the amount of substance present in any part of a reaction. The arrow (->) suggests that the reaction goes to completion (100%), so <em>assume</em><em> </em><em>that</em><em> </em><em>left</em><em> </em><em>side</em><em> </em><em>=</em><em> </em><em>right</em><em> </em><em>side</em><em>.</em>

3H2

15 mol

You can divide the amount of moles by the coefficient to find the number of moles when you have a coefficient of 1. This number can then be used to find the value of moles for the rest of the products/reactants:

15/3=5mol

NH3 has a coefficient of 2, so we have to multiply the value we got (5mol) by 2. This results in having 10mol of ammonia as the end result.

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What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 54?
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Answer:

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<em>Note: The question is incomplete. The compound are as follows:</em>

<em> 1. Caffeine, C₈H₁₀N₄O₂;</em>

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Amount (moles) = mass in grams /molar mass in grams per mole

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3. Dry Ice, CO₂

molar mass of dry ice = 44 g/mol

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