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A Typical Exam Question

A Typical Exam Question. This is to give you an idea of what a typical exam question on the final will be like. You should use a blank/scrap piece of paper and follow along through the problem. Make sure you know how to solve each part. If you cannot, you may want to practice that topic!.

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A Typical Exam Question

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  1. A Typical Exam Question

  2. This is to give you an idea of what a typical exam question on the final will be like. • You should use a blank/scrap piece of paper and follow along through the problem. • Make sure you know how to solve each part. If you cannot, you may want to practice that topic!

  3. Question 1 • Ammonia (nitrogen trihydride) gas is created from pure nitrogen and hydrogen reacting. • What is the electron configuration of a nitrogen atom? (1 mark) 1s22s22p3

  4. Ammonia (nitrogen trihydride) gas is created from pure nitrogen and hydrogen reacting. • What is the correct Lewis Structure for ammonia? (2 marks) • What is the correct molecular geometry for ammonia? (1 mark) Trigonal-pyramidal

  5. Ammonia (nitrogen trihydride) gas is created from pure nitrogen and hydrogen reacting. • What type of reaction is taking place? (1 mark) Synthesis • What is the formula for the product of this reaction? (1 mark) NH3 • What is the balanced equation for this reaction (including states)? (2 marks) N2 (g) + 3 H2(g) ↔ 2 NH3(g)

  6. Ammonia (nitrogen trihydride) gas is created from pure nitrogen and hydrogen reacting. • If 14.6 g of ammonia are produced, how many atoms are produced? (3 marks) 2.06*1024 atoms present (remember to multiply by 4 as there are 4 atoms in 1 molecule of NH3) • If 14.6 g of ammonia were produced, how many grams of hydrogen reacted? (3 marks) 2.60g of H2 reacted

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