Bell ringer # 2 : How many grams of CaC2 are needed to produce 78.0 g of acetylene? CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) TIME’S UP! START TIMER 5.

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Bell ringer # 2 : How many grams of CaC2 are needed to produce 78.0 g of acetylene? CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) TIME’S UP! START TIMER 5 4 1 3 2

Bell Ringer # 2 (Stoichiometry): How many grams of CaC2 are needed to produce 78.0 g of acetylene? CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq)

CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) How many grams of CaC2 are needed to produce 78.0 g of acetylene? ____ _____ CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq)

CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) How many grams of CaC2 are needed to produce 78.0 g of acetylene? X g 78.0 g CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq)

CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) How many grams of CaC2 are needed to produce 78.0 g of acetylene? X g 78.0 g CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) 64.11 g 26.04 g

CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) How many grams of CaC2 are needed to produce 78.0 g of acetylene? X g 78.0 g CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) 64.11 g 26.04 g =

CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) How many grams of CaC2 are needed to produce 78.0 g of acetylene? X g 78.0 g CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) 64.11 g 26.04 g =

CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) How many grams of CaC2 are needed to produce 78.0 g of acetylene? X g 78.0 g CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) 64.11 g 26.04 g = X = = 192 g CaC2

ACTIVITIES: Bell ringer #2. Review (exercises from the WS). QUIZ: Stoichiometric Problems. Homework: Online Quiz: Stoichiometry Moe & Mass. Code: 713040.