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CHEM 20B Chapter 11.3-11.4: [Wk3.Fri Reading] 11.3-11.4 AcidBase and Redox

United States

Chemical Energetics and Change

Chemistry and Biochemistry

Weiss, Paul

University of California - Los Angeles

Chemical Structure

Fundamentals of Chemical and Biomolecular Engineering

Introduction to Chemical and Biomolecular Engineering

Organic Chemistry II: Reactivity, Synthesis, and Spectroscopy

General Chemistry Laboratory II

Linear Algebra and Applications

Physics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity

Physics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields

Physics for Scientists and Engineers: Mechanics

<p>1) The following reactions are examples of _____________. Pb2+ (aq) + 2I- (aq) â PbI2 (s) 2 Ce4+ (aq) + 2I- (aq) â I2 (g) + 2Ce3+ (aq) NaOH (aq) + HNO2 (aq) â NaNO2 (g) + H2O (aq) a) Un-balanced reactions b) Precipitation, acid-base and redox reactions, respectively c) Redox, acid-base and precipitation reactions, respectively d) Precipitation, redox and acid-base reactions, respectively e) Acid-base reactions</p>

<p>Which reaction describes how hydrogen gas could be prepared inthe laboratory?</p> <p>Which reaction describes how hydrogen gas could be prepared inthe laboratory?</p> <table><tbody> <tr> <td></td> <td>An acid-base reaction between dilute hydrochloric acid and zincmetal</td> </tr> <tr> <td></td> <td>An acid-base reaction between dilute hydrochloric acid and zinchydroxide</td> </tr> <tr> <td></td> <td>A redox reaction between dilute hydrochloric acid and zincmetal</td> </tr> <tr> <td></td> <td>A redox reaction between dilute hydrochloric acid and zinchydroxide</td> </tr> </tbody></table>

<p>1.0M HC2H3O2 (the weak acid acetic acid) and 1.0M NH3(the weak base ammonia)</p> <p><span style="line-height:1.6;">acetic acid(PH): #1: 2.4 , #2: 2.8 , #3: 3.2</span></p> <p>ammonia(PH): #1: 11.4 #2: 11 #3: 10</p> <p><span style="line-height:1.6;">calculate the concentraion of HC2H3O2 or NH3 in each of the solutions you measured. By how many units did the PH of a solution of a weak base or acid change when it was diluted by a factor of ten?</span></p>

[CHEM 20B] - Midterm Exam Guide - Comprehensive Notes for the exam (20 pages long!)

CHEM 20B Chapter 11.3-11.4: [Wk3.Fri Reading] 11.3-11.4 AcidBase and Redox

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	An acid-base reaction between dilute hydrochloric acid and zincmetal
	An acid-base reaction between dilute hydrochloric acid and zinchydroxide
	A redox reaction between dilute hydrochloric acid and zincmetal
	A redox reaction between dilute hydrochloric acid and zinchydroxide