How Much Acid is Too Much Target 7

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How Much Acid is Too Much? Target 7 -2

How Much Acid is Too Much? Target 7 -2

What We Know �The p. H of normal ocean water is_____ �The p. H

What We Know �The p. H of normal ocean water is_____ �The p. H of the oceans now is ____ �Rivers keep the ocean p. H stable by ______

What We Know �The p. H of normal ocean water is 8. 1 -8.

What We Know �The p. H of normal ocean water is 8. 1 -8. 2 �The p. H of the oceans now is ____ �Rivers keep the ocean p. H stable by ______

What We Know �The p. H of normal ocean water is 8. 1 -8.

What We Know �The p. H of normal ocean water is 8. 1 -8. 2 �The p. H of the oceans now is 8. 0 -8. 1 �Rivers keep the ocean p. H stable by ______

What We Know �The p. H of normal ocean water is 8. 1 -8.

What We Know �The p. H of normal ocean water is 8. 1 -8. 2 �The p. H of the oceans now is 8. 0 -8. 1 �Rivers keep the ocean p. H stable by acting as a buffer

Recap �Acids are substances that increase the amount of H 3 O+ in a

Recap �Acids are substances that increase the amount of H 3 O+ in a sample

Recap �Weak Acids: �Dissociate partially (not completely) �Stay at equilibrium �Ex) C 2 H

Recap �Weak Acids: �Dissociate partially (not completely) �Stay at equilibrium �Ex) C 2 H 5 COOH + H 2 O <-> C 2 H 5 COO- + H 3 O+

Recap �When a weak acid dissociates, it creates its conjugate base �Ex) C 2

Recap �When a weak acid dissociates, it creates its conjugate base �Ex) C 2 H 5 COOH + H 2 O <-> C 2 H 5 COO- + H 3 O+

Recap �Conjugate Base: a molecule made when an acid loses its acidic hydrogen �Acts

Recap �Conjugate Base: a molecule made when an acid loses its acidic hydrogen �Acts like a very weak base �Is able to react with H+ to re-form the original acid

Buffers �A buffer solution is a solution containing a weak acid and its conjugate

Buffers �A buffer solution is a solution containing a weak acid and its conjugate base or a weak base/conj. acid �Solution is at equilibrium �Will react with a strong acid or strong base

Buffers �Remember that when acid is added to water, H 3 O+ ions are

Buffers �Remember that when acid is added to water, H 3 O+ ions are formed: �HCl H+ + Cl�H+ + H 2 O H 3 O+

Buffers �When acid is added to a buffer solution, those H+ ions react with

Buffers �When acid is added to a buffer solution, those H+ ions react with the weak base in the buffer before they react with the water �HCl H+ + Cl�H+ + H 2 O + Na. HCO 3 Na. H 2 CO 3 + H 2 O �The H 3 O+ ion doesn’t form, so the p. H changes less

Demo �We are going to add strong acid to water and to a buffer

Demo �We are going to add strong acid to water and to a buffer solution. �Record the p. H of each solution after each drop is added.

Reflect �What happened when we added acid to water? �What happened when we added

Reflect �What happened when we added acid to water? �What happened when we added acid to the buffer?

In the Ocean �Primary Ocean Buffer System: Na 2 CO 3 + H+ <->

In the Ocean �Primary Ocean Buffer System: Na 2 CO 3 + H+ <-> Na. HCO 3 �Na. CO 3 is formed when: �Carbonate ions (CO 32 -) from bedrock flow from rivers into the ocean �Carbonate reacts with sodium ions (Na+) from the salt in ocean water

Too Much Too Little Too Late A CriticalToo Much Too Little Too Late A Critical
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TOO TOO ADJECTIVE TOO can be followed byTOO TOO ADJECTIVE TOO can be followed by
NGLZCE TOO ENOUGH 1 NGLZCE TOO ENOUGH TOONGLZCE TOO ENOUGH 1 NGLZCE TOO ENOUGH TOO
too and enough too and enough Both tootoo and enough too and enough Both too
NUTRIBITES Webinar Series Sodium Too much too littleNUTRIBITES Webinar Series Sodium Too much too little
Too little water Too much water Water environmentToo little water Too much water Water environment
Too Much Information And Too Little Time RajToo Much Information And Too Little Time Raj
Too Much Content Too Little Time Marti EcholsToo Much Content Too Little Time Marti Echols
Too little or too much Trace elements andToo little or too much Trace elements and
ENVIRONMENTAL SCIENCE CLASS 4 TOO MUCH WATER TOOENVIRONMENTAL SCIENCE CLASS 4 TOO MUCH WATER TOO
QUANTIFIERS enough not enough too much too manyQUANTIFIERS enough not enough too much too many
The New First Grade Too Much Too SoonThe New First Grade Too Much Too Soon
Too little or too much ventilation Insufficient ventilationToo little or too much ventilation Insufficient ventilation