Name:________________________________ Date: ________________ Pd ________ Acid-Base Webquest Resources General Acid-Base Information Acid-Base Tutorial & Problems Properties of Acids & Bases pH Information Strong vs. Weak Acids Strong vs. Weak Bases More pH Info w/ animations pH Animation Acid Base Indicators#1 Acid Base Indicators#2 Searchable Acid Base FAQ database http://www.chemtutor.com/acid.htm http://www.biology.arizona.edu/biochemistry/problem_sets/ph/ph.html http://virtual.yosemite.cc.ca.us/lmaki/Chem142/chap_outlines/chapter12.htm http://www.purchon.com/chemistry/ph.htm http://www.chemguide.co.uk/physical/acidbaseeqia/acids.html http://www.chemguide.co.uk/physical/acidbaseeqia/bases.html http://web.jjay.cuny.edu/~acarpi/NSC/7-ph.htm http://www.johnkyrk.com/pH.html http://chemistry.about.com/od/acidsbases/a/Acid-Base-Indicators.htm http://www.chemguide.co.uk/physical/acidbaseeqia/indicators.html http://antoine.frostburg.edu/chem/senese/101/acidbase/faq.shtml Name:________________________________ Date: ________________ Pd ________ 1.) Describe the physical properties, taste, feel, etc, of Acids. And of Bases. Acids: _________________________________________________________________________________________ Bases: ____________________________________________________________________________________ 2.) Give 3 examples of acids and 3 examples of bases from the pH Scale on this document: Acids: 1. 2. 3. Bases: 1. 2. 3. 3.) List the metals that acids react with to form H2 gas:___________________________________ 4.) When acids react with react with compounds containing CO32- what products are formed?________________________________________________ 5.) Acids turn litmus ________________ . 6.) Bases turn litmus _______________ . 7.) Bases react with most cations to precipitate _________________________. 8.) What is the difference between an electrolyte and a nonelectrolyte? __________ ________________________________________________________________ 9.) How can pH be determined experimentally? ________________________________________ . 10.) How do you neutralize an acid? _______________________________________ A base? _________________________________________________________ Name:________________________________ Date: ________________ Pd ________ 11.) Watch the pH animation and describe the role of an acid and of a base in an acid/base reaction. 12.) How is a strong acid different from a weak acid? 13.) How is a strong base different from a weak base? 14.) List the six strong acids: ___________________________________________________________ . 15.) Why do we use a double arrow in( ↔ ) the dissociation equation for a weak acid? _________________________________________________________________________________ . 16.) Why is only one arrow ( → ) required for the dissociation of a strong acid? _____________________________________________________________________ . 17.) List the 3 scenarios for a substance being classified as a weak acid: a.) _______________________________________________________________ . b.)________________________________________________________________ . c.) _______________________________________________________________ . 18.) Describe strong bases: ______________________________________________ . 19.) Which are the strong bases?__________________________________________________ . 20.) How many moles of OH ions are produced from the hydroxides of Group II metals for every mole of base that dissociates? _________________ . 21.) Give the general equation for the reaction of a weak base with water: 22.) What do scientists use to measure pH? ________________________________ 23.) pH is measured on a logarithmic scale. What does this mean? ________________________________________________________________ ________________________________________________________________ Name:________________________________ Date: ________________ Pd ________ 24a. What is the difference between pH and pOH? (equation) 25b. What do the brackets around a chemical mean, like for [H+]? ____________________________________________________________________ Use this link to answer the following questions: Search through the tabs on the left side of the Webpage. http://www.epa.gov/acidrain/what/ 26.) Rain that has a very low pH is called ____________________________ . 27.) Natural rainwater has a pH of ______________ . 28.) Sulfur dioxide reacts with atmospheric oxygen to form ______________ . 29.) Name the two acids in pollution that make rain acidic: _____________________ . 30.) Fish in a lake will die if the pH drops below _____________ .