CHEM 14BL
University Of California, Irvine School Of Law
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Chem 14BL Final Cheat Sheet|ALL YOU NEED
- Prüfung • 4 Seiten • 2022
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A−¿
¿
¿
¿
(base/acid) HA=acid OH-
=base A
-
=conjugate base H2O=conjugate acid
Initial pH: Soltn. Acetic acid made by dissolving 5.00x10-3 mol acetic acid (HA) in 100.00mL water. Then titrated with strong base (NaOH) conc. 0.250M (Ka = 1.8x10-5)
HA + H2O H3O
+
+ AKa =
(x )(x)
0.05−x
ASSUME X<<0.005 1.8x10-5 =
(x)(x )
0.05 solve
I 0.05M ~ 0 0 x = 3.0x10-4 CHECK ASSUMPTION
(3.0 x10−4
)
0 .005
∗100 = 6% (doesn’t work, plug into quadratic,
watch ...
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Chem 14BL Final Cheat Sheet|ALL YOU NEED
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A−¿ ¿ ¿ ¿ (base/acid) HA=acid OH- =base A - =conjugate base H2O=conjugate acid Initial pH: Soltn. Acetic acid made by dissolving 5.00x10-3 mol acetic acid (HA) in 100.00mL water. Then titrated with strong base (NaOH) conc. 0.250M (Ka = 1.8x10-5) HA + H2O H3O + + AKa = (x )(x) 0.05−x ASSUME X<<0.005 1.8x10-5 = (x)(x ) 0.05 solve I 0.05M ~ 0 0 x = 3.0x10-4 CHECK ASSUMPTION (3.0 x10−4 ) 0 .005 ∗100 = 6% (doesn’t work, plug into quadratic, watch ...
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