Bell Work: Intro to Stoicheometry

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Presentation transcript:

Bell Work: Intro to Stoicheometry Balance the reaction: N2 + H2  NH3 How many moles of nitrogen react? How many moles of hydrogen react? How many moles of ammonia are produced? If 3 moles of nitrogen react, how many moles of ammonia will be produced?

http://www. youtube. com/watch http://www.youtube.com/watch?v=3dqRzvk2GwY&NR=1&feature=fvwp http://www.youtube.com/watch?NR=1&v=9sFyfF34iPw&feature=endscreen http://www.youtube.com/watch?v=UwANYVSwOos&feature=related Na + H2O  NaOH + H2

Na + H2O  NaOH + H2 Balance the equation. 2 Na + 2 H2O  2 NaOH + H2 What is the mole ratio between sodium and hydrogen? 𝟐 𝒎𝒐𝒍 𝑵𝒂 𝟏 𝒎𝒐𝒍 𝑯 𝟐 OR 𝟏 𝒎𝒐𝒍 𝑯 𝟐 𝟐 𝒎𝒐𝒍 𝑵𝒂 What pairs of chemicals will have a 2 to 2 ratio? Sodium: water water: sodium hydroxide Sodium: sodium hydroxide

2Na + 2H2O -> 2NaOH + H2 How many moles of hydrogen gas will be produced from 0.2 mol sodium? 0.2 𝑚𝑜𝑙 𝑁𝑎 1 𝑚𝑜𝑙 𝐻 2 2 𝑚𝑜𝑙 𝑁𝑎 = 0.1 mol H2 5. How many moles of hydrogen gas will be produced from 99 mol sodium? 99 𝑚𝑜𝑙 𝑁𝑎 1 𝑚𝑜𝑙 𝐻 2 2 𝑚𝑜𝑙 𝑁𝑎 = 49.5 mol H2 6. How many moles of water will react with 9,000 mol sodium? 9000 𝑚𝑜𝑙 𝑁𝑎 2 𝑚𝑜𝑙 𝐻 2 𝑂 2 𝑚𝑜𝑙 𝑁𝑎 = 9000 mol H2