Question

i would like to know if these are correct.

M 100 Practice problem set or each reaction in this problem set, you must write down the chemical formulas and the state of each reagent and product. For answers, visit any of the office hours available to you. efer to the following statement for Q1-7: Equal amounts of Nitrogen gas and Hydrogen gas combipe to make liquid ammonia (NH) 1. Write down the chemical reaction and balance it. N2)2 H How many moles are in 2.8g of nitrogen gas? Tmole 2. 0.1mole 2-49% How many moles of ämmonia can be produced with 2.8g of nitrogen gas? 3. 2mol NH 1males o:Imden 21 N How many moles are in 2.8g of hydrogen gas? 4. i-4 mde H 2-8a H2 xImdett2 5. How many moles of ammonia can be produced with 2.8g of hydrogen gas? 93mob t 14males H x 2mdcia 3moles H2 6. Based on your answers in Q3 and Q5 what is the limiting reagent of this reaction? Nitrogen 7. How many molecules of ammonia are produced in this reaction? 23 Nlo-02x10 2 mdes NHx 9Imale nt 1-20X024

Answer 1

Hey you are awesome, all are correct and perfect, but with minute corrections only!

1. Product should be labelled as liquid i.e., 2NH₃ (l)

7. We know from Q6, N₂ is limiting reagent, so moles NH₃ produced = 0.2 moles, so molecules will be (not 2 moles which is balanced equation coefficient only, they mentioned to use 2.8 g H₂ & N₂)

molecules of NH₃ = 0.2 mol x 6.022 x 10²³ molecules/mol

molecules of NH₃ = 1.2 x 10²³ molecules. ----------- looks same as your answer, but 10 power is 23 only NOT 24

Hope this helped you!

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