Question

Mole Relationships in Chemical Equations

Ammonia is produced by the reaction of hydrogen and nitrogen.

N₂(g) + 3H₂(g) → 2NH₃(g)

       ammonia

a. How many moles of H₂ are needed to react with 1.0 mole N₂?

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b. How many moles of N₂ reacted if 0.60 mole NH₃ is produced?

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c. How many moles of NH₃ are produced when 1.4 moles H₂ reacts?

Answer 1

574-5-5.48P

(a). Step 1. Given Need moles of

Step 2. Plan moles of reacting with moles of hydrogen; calculating Mole – mole factor

Step 3. Use coefficient to write relationships and mole – mole factors

Step 4. Set up problem using the mole – mole factor that cancels given moles

(b). Step 1. Given Need moles of

Step 2. Plan moles of Mole – mole factor moles of

Step 3. Use coefficient to write relationships and mole – mole factors

Step 4. Set up problem using the mole – mole factor that cancels given moles

(c). Step 1. Given Need moles of

Step 2. Plan moles of Mole – mole factor moles of

Step 3. Use coefficient to write relationships and mole – mole factors

Step 4. Set up problem using the mole – mole factor that cancels given mole.