'Calculate ph' presentation slideshows

Acid-Base Equilibria

Acid-Base Equilibria. Acids and Bases: A Brief Review. Acids: taste sour and cause dyes to change color. Bases: taste bitter and feel soapy. Arrhenius: acids increase [H + ]; bases increase [OH - ] in solution. Arrhenius: acid + base ? salt + water.

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6-4-2011

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Acid-Base Equilibria

Acid-Base Equilibria. Chapter 16. HA ( aq ) + H 2 O ( l ) H 3 O + ( aq ) + A - ( aq ). HA ( aq ) H + ( aq ) + A - ( aq ). [H + ][A - ]. K a =. [HA]. weak acid strength. K a. Weak Acids (HA) and Acid Ionization Constants.

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Arrhenius and CALCULATIONS December log 10 10 8 , 2.009 * 10 3

Arrhenius and CALCULATIONS December log 10 10 8 , 2.009 * 10 3. Objective: SWBAT calculate pH and pOH using known concentrations Catalyst: Which is a stronger acid, one with a pH of 5 or one with a pH of 3? Which is a stronger base, one with a pH of 11 or one with a pH of 14?

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pH and K a values of Weak Acids

pH and K a values of Weak Acids. AP Chem April 24, 2012. Weak Acids: Calculation of K a from pH. Will need to use ICE skills for solving equilibrium problems. Because the concentration of the acid (reactant side) does NOT equal the concentration of the H+ ion (product side)

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What is pH?

What is pH?. Concentration and hydrogen ions and hydroxide ions are a measure of The acidity and alkalinity of a solution. How was the concept of pH developed?. H 2 O is a molecule. Therefore, pure water does not conduct electricity. Or does it?.

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Acids and Bases

Acids and Bases. Strong Acids, strong bases and pH. Bronsted -Lowry Model of Acids and Bases Acid is a proton donor, base is a proton acceptor. HB ( aq ) + A - ( aq ) ? HA ( aq ) + B - ( aq ) HA and HB are acids, A - and B - are bases

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Strong Acids The strongest common acids are HCl, HBr, HI, HNO 3 , HClO 3 , HClO 4 , and H 2 SO 4

16.5: Strong Acids and Bases. Strong Acids The strongest common acids are HCl, HBr, HI, HNO 3 , HClO 3 , HClO 4 , and H 2 SO 4 Strong electrolytes Ionize completely in solution: HNO 3 ( aq ) + H 2 O( l ) ? H 3 O + ( aq ) + NO 3 - ( aq ) Remember, H + and H 3 O + are used interchangeably.

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pH and pOH

pH and pOH. Ways to measure Acidity/ Basicity What is pH? What is pOH ?. What is pH?. pH = potential Hydrogen The pH scale measures how acidic or basic a substance is, is logarithmic The pH scale ranges from 0 to 14. A pH of 7 is neutral.

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