6So now your gummy looks like this: After sitting in a glass of waterNormal size
7Gummy Bears, Day 2A gummy bear, full of water and sugar solute, is placed in a cup of fresh water.What happens?Since the gummy still contains more solute (sugar) inside, the water does not flow in or out of the gummy bear.
8Gummy Bear, Day 2A gummy bear, full of water and sugar, is placed in a cup full of concentrated salt water.Where does the water want to go?Since the salt water was much more concentrated, the water now flows from the gummy bear to the water. “SOLUTE SUCKS!”
9Water will go where there is more concentrated solute! “SOLUTE SUCKS!”
10After sitting in concentrated salt water: He has lost all of his excess water to the high salt concentration in the outside water!
11Law of Conservation of Mass Matter or Mass cannot be created, lost, or destroyed.The reactants = the productsThis is why we must balance equations!
12Lab Station #1- Baking soda + Vinegar SubstanceMassVinegar (reactant)11.0gBaking soda (reactant)+ 2.5gTheoretical mass of products==13.5gSolid baking soda + vinegar after reacting(total product)13.0gHow much was lost as a gas????=0.5g(amount of product escaped as a gas!!)
13Lab Station #1- What happened? REACTANTS = 13.5gPRODUCTS=13.5g2.5gGas (0.5g)Vinegar + Baking Soda (13.0g)Vinegar(11.0g)
14Station #2-Balancing Equations All chemical reactions must satisfy, or meet the Law of Conservation of Mass!!!We must balance all of the atoms on each side of the reaction.Example:2 C2H6(g) + 7 O2(g) 4 CO2(g) + 6 H2O(g)