 Sour to taste  Turn litmus red  Phenolphthalein stays colorless  Electrolytes (conduct)  React with some metals to form H 2 gas  How do we recognize.

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Presentation transcript:

 Sour to taste  Turn litmus red  Phenolphthalein stays colorless  Electrolytes (conduct)  React with some metals to form H 2 gas  How do we recognize an acid from its formula?  What are the pH values for acids?

 Bitter to taste  Slippery to touch  Turn litmus blue  Phenolphthalein turns MAGENTA!!!!!  Electrolytes  How do we recognize a base from its formula?  What are the pH values for bases?

 Pouvoir hydrogene: “hydrogen power”  pH=measure of [H 3 O + ] (Acidity)  [H 3 O + ] expressed in powers of 10 ex: to **Formula for calculation: -log [H 3 O + ] = pH

 if [H 3 O + ] is: a x M b x M c x M

 pOH = -log [OH - ]  [OH-] x [H 3 O+] = 1 x  pH + pOH = 14  So….. If pH is 2, then pOH is 12  If [OH - ] is: a. 1.0 x b. 1.0 x

 What is the pH of HCl solution?  What is the pH of NaOH solution?  What should the final pH of the solution be?  Write the equation for the reaction.  Acids and bases neutralize one another.  Acid + base  salt + water  Salt is made of cation from base and anion of acid

Complete the virtual titration lab for homework This is the same reaction you did yesterday in lab!  Analytical method in which a standard (known concentration) solution is used to determine concentration of another