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4636770-198120Name: ____________________________Station 1Common Acids and Bases:Directions: Complete these paragraphs by filling in or circling the appropriate information based on the information that you know about acids and bases. You may have to use Google to find the answers.55949851708785-120015626110When most people think of chemistry the first terms that come to mind are acids and bases. Many of the chemicals that people run across have some connection to acids and bases. For instance many people take medicine every day to cure heartburn. These medicines are (acids/bases). One of these comes in a blue bottle and is known as “Dr. MOM”. The common name for this is Milk Of Magnesia the IUPAC name for this substance is __________________________ and the chemical formula is _________________. Another product claims that it is better for us to use because it contains calcium. So in addition to helping relieve the heartburn, it also provides us with needed calcium. This product is called Tums and its IUPAC chemical name is ________________ and its chemical formula is _________________.-5715180340Another product that is used all the time is Drano. Drano is a(n) (acid/base) and it has the common name of “lye” the IUPAC chemical name is _____________________________, and the chemical formula is ___________________. This chemical is more dangerous than the ones used for heartburn and can cause blindness or burns. (Acids/Bases) are also commonly used to produce soaps and have a (bitter/sour) taste. Seltzer water and all sodas contain a very mild (acid/base) know as _____________________. Dissolving carbon dioxide in water forms this substance. The chemical formula for this substance is ______________.Vinegar is a(n) (acid/base) finds its way into our diet in ketchup and most salad dressings. The chemical name for vinegar is _____________________, the chemical formula for this substance is _______________________. Directions: Fill in the blanks with the words from the box. Hydrochloric bitter burns digest soapy hydroxide Acid metalsions sour vinegar litmus An ____________ is a compound that contains hydrogen and releases __________ (H+) in water. Acids often taste _______________ and many acids can ________________ you if you touch them. Another property of acids is that they react with _____________ to produce hydrogen gas as acid dissolves the metal material.There are many different kinds of acids. Lemon juice and _____________ are examples of acids. There is even a very strong acid in your stomach called ____________________acid. This acid helps you ________________food. You can use blue____________ paper to determine is something is an acid or not because the acid will turn the paper red.Bases on the other hand are compounds that contain a metal and a polyatomic ion called __________________ion. Bases dissolve in water and dissociate (separate) into ions. Bases feel _______________ when you touch them and taste ______________.Many household cleaners are bases. Some bases can even dissolve hair and food, which makes them ideal for clearing, clogged drains.13658851384305322570-363220Name: _______________ Station 2Acids and BasesHow do acids and bases behave in water?Acids and bases play an important role in our lives. Numerous biological processes, industrial applications, and even environmental problems are a function of the acidity or basicity (alkalinity) of aqueous solutions. It is therefore important to understand what makes a substance behave as an acid or a base when dissolved in water. In this activity, we will explore the physical and chemical properties of acids and bases.Answer the following questions using the chart at your station.1. What is the common name for Vitamin C?___________________________ Is Vitamin C classified as an acid or a base?_______________2. Examine the properties of the Arrhenius acids on the chart. List three properties that all Arrhenius acids have in common._______________________________________________________________________________________________________________3. Examine the chemical formulas for the Arrhenius acids on the chart. What feature do all the Arrhenius acid chemical formulas have in common?___________________________________________________4. Examine the properties of the Arrhenius Bases on the chart. List three common properties that all Arrhenius bases have in common._______________________________________________________________________________________________________________5. Examine the chemical formula for the Arrhenius bases on the chart. What anion does all the Arrhenius base chemical formula have in common?______________________________6. Using your glossary, define the following terms:Arrhenius Acid:___________________________________________________________________________________________________________________________________________________________________________________________________Arrhenius Base:___________________________________________________________________________________________________________________________________________________________________________________________________7. The student dissolved a small amount of baking soda in water and tested it with litmus paper. The litmus paper turned blue. Is baking soda likely an acid or a base?__________________8. Below are examples of an Arrhenius acid and base.182308590805HCl ----> H+(aq) + Cl-(aq) Acid NaOH----> Na+(aq) + OH-(aq) Base00HCl ----> H+(aq) + Cl-(aq) Acid NaOH----> Na+(aq) + OH-(aq) Base Complete the following statements:a. HNO3 is an Arrhenius ___________ and increases the concentration of _______________ ions when added to water.b. Ca(OH)2 is an Arrhenius __________ and increases the concentration of _______________ ions when added to water.41090851898655513070-420370Name: ___________________Station 3IUPAC Naming of Acids and BasesFollow the rules for naming acids and bases and research on your phone or iPad where these acids are commonly found.IUPAC NameChemical FormulaWhere FoundAcetic AcidH2CO3Citrus fruits, tomatoes, vegetablesHBrGastric juices in stomachAcetylsalicylic acidH3PO4Eyewash solutionsHydrosulfuric acid3752850183515Name the following acids: HMnO4 _____________________________HI _____________________________HNO2 _____________________________HNO3 _____________________________HF ______________________________NameChemicalFormulaUsesAluminum hydroxideManufacture of mortar and pestleNaOHMagnesium HydroxideName the following bases:NH4OH _____________________Fe(OH)3 ___________________Write the formulas for the following bases:Barium hydroxide ___________Lithium hydroxide ___________Acids, Bases, and Salts in WaterWrite the chemical equation and the equilibrium expression for the self-ionization of water (self-ionization constant, Kw).Equation: ______________________________Kw = 2. Which acids from Table K are considered “strong”? ______________________ Are these acids good or poor electrolytes? ________ Explain, in terms of Ka values and solubility. _________________________________________________________________________________________________________________3. Which bases from Table L are considered “strong”? ______________________ Are these bases good or poor electrolytes? ________ Explain in terms of solubility (using Table F). _____________________________________________________________________________________________________________________pH Practice1. Which of the following solution pH values is the most acidic?a) 5b) 7c) 9d) 112. A pH of 14 is how many times more pasic than a pH of 12?a) 10 b) 100c) 1,000d) 10,0003. Which of the following solutions can have a pH of 5?a) a 10-5 M solution of HClc) a 10-5 M solution of NaOHb) a 10-5 solution of NaCld) a 10-5 M solution of CH44. What is the pH when equal volumes of 0.1 M HCl and 0.1 M NaOH are added to a beaker?a) less than 7b) more than 7c) exactly 75. Strong acids and bases ave more dissolved ions per liter than weak acids and bases. Which pH value indicates the solution that is an acid that conducts electricity the best?a) 3b) 5c) 9d) 126. Which pH value indicates the solution that is a base that conducts electricity the poorest?a) 3b) 5c) 9d) 127. A pH of 4 is how many times more acidic than a pH of 6? ______8. A pH of 11 is how many times more basic than a pH of 8? ______9. Complete the following chart:Indicator UsedpH of SolutionColor of indicator in solutionIs the solution an acid or a base?Methyl orange9Litmus10Bromcresol green2Thymol blue1310. Explain why methyl orange would be a poor choice of indicator to use if you were testing to see if a solution was definitively an acid or a base.__________________________________________________________________________________________________________________________________ ................
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