28 Results
pH and pOH   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solutions   
(Movie/Animation, Audio/Visual (9))
Reactions and demonstrations exploring the concepts of solutions.
Relative Reactivity: Strong Acid, Weak Acid, Buffer Solution   
(Movie/Animation, Audio/Visual (8))
A strong acid, a weak acid, and a buffer solution are each added to sodium bicarbonate and the reaction rates are compared.
Oxidation-Reduction (Redox) Reactions   
(Movie/Animation, Audio/Visual (5))
Demonstrations exploring oxidation/reduction chemistry.
pH Meter   
(Movie/Animation, Audio/Visual (5))
The use of a pH meter is demonstrated.
Electrolysis   
(Movie/Animation, Audio/Visual (4))
Various examples of electrolysis are presented.
pH of Acetic Acid Derivatives   
(Movie/Animation, Audio/Visual (3))
The pH of acetic acid, monochloro-, dichloro-, trichloro-, and trifluoroacetic acids are compared.
Ammonia Fountains   
(Movie/Animation, Audio/Visual (2))
An ammonia fountain is demonstrated.
Ammonia Fountains - Multiple   
(Movie/Animation, Audio/Visual (2))
System of multiple ammonia fountains are set up and run. A separatory funnel, four round-bottomed flasks, and some tubing form a closed system. One end of the tubing is immersed in an acetic acid solution that contains universal indicator. The glassware has been filled with ammonia gas. The stopcock of the funnel is closed.
pH   
(Movie/Animation, Audio/Visual (2))
The use of pH meters and pH paper to measure the pH of solutions is demonstrated.
Acid Base Reactions   
(Movie/Animation, Audio/Visual (16))
Simple experiments show the titration of acids with sodium hydroxide and the generation of acid from carbon dioxide in water.
Enthlapy-Thermodynamics   
(Movie/Animation, Audio/Visual (10))
Reactions and demonstrations the explore thermodynamic concepts.
Acids_and_Bases : BufferWeakWeak (14 Variations)   
(Assessment Material (1))
What mass of potassium bicarbonate (KHCO3) must be added to 500 mL of a 0.200 M carbonic acid solution to make a buffer with pH = 6.30?
Acids_and_Bases : CalcSolnpH (5 Variations)   
(Assessment Material (1))
Use this acid/base table to answer the question below.

Calculate the pH of a {x}M sodium acetate solution.

DO NOT use scientific notation
Enter your answer to two decimal places.
DO NOT enter units

Acids_and_Bases : BufferWeakStrong (7 Variations)   
(Assessment Material (1))
How many mL of a 2.50 M HCl solution must be added to 500 mL of a 0.150 M CO32- solution to make a buffer with pH = 10.00?
Acids_and_Bases : pHBufferCalc (4 Variations)   
(Assessment Material (1))
Calculate the pH of a buffer solution containing {x}M NH3 and {y}M NH4NO3.

Enter your answer to TWO decimal places.
DO NOT use scientific notation.
DO NOT enter units
        eg:     4.55

Acids_and_Bases : pHDilution (6 Variations)   
(Assessment Material (1))
What is the pH of a solution made by diluting {x} mL of {y} M HNO3(aq) to a total volume of 500 mL?

Enter your answer to two decimal places.
DO NOT use scientific notation

Acids_and_Bases : BufferingCapacity (20 Variations)   
(Assessment Material (1))
If a buffer is prepared using 0.75 mol CH3COOH and 0.45 mol CH3COO- in 1 liter of aqueous solution, is the buffering capacity of the solution great enough to maintain its pH if 10 g NaOH is added?
Acids_and_Bases : WeakAcidSolnpH (20 Variations)   
(Assessment Material (1))
Given an aqueous solution of 0.30 M acetic acid (Ka = 1.8 x 10-5), the pH is approximately ...
Acids_and_Bases : SolnGrams (20 Variations)   
(Assessment Material (1))
How many grams of sodium hydroxide (NaOH) must be dissolved in 510 ml of water to make a solution with a pH = 8.1?
Acids_and_Bases : ChooseIndicator (8 Variations)   
(Assessment Material (1))

A 25.0 mL aliquot of a 1.44M solution of ammonia (Kb = 1.8 x 10-5) is titrated with 1.50M HCl. Use the Indicator Table below to decide which of the indicators listed would most accurately signal the equivalence point for this titration.

Write the letter corresponding to your choice of indicator in the box.

Reactions : AcidBaseRxns (20 Variations)   
(Assessment Material (1))
In order to answer the following questions, write the net ionic equation for the reaction between equal volumes of 0.10 M solutions of the following acid and base:

KOH(aq) + HBr(aq)

What are the reaction products? Does the reaction yield an acidic, basic, or neutral aqueous solution?

ChemPaths 104 M Apr 11   
()
Today in Chem 104: * Lecture: pH; Acid-Base Equilibria; Ionization * Reading: Kotz: Ch. 17, Sec. 6-7 Moore: Ch. 16, Sec. 7-8 * Homework #10 due by 11:55 PM F Apr 15 * Quiz in second discussion section this week * Lab this week is #6, Acid and Base Solutions
Conjugate Acid-Base Pairs and pH in Foods - From cleaning and disinfection to microbial nutrition and protein modification   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
The pH of Solutions of Weak Bases in Foods   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Weak acids in foods - pH and beyond   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
PH and pOH in Food Color   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
PH and pOH in Everyday Life   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.