UNIT 14 -ACIDS AND BASES - Miss Clark's Website



Unit 14ACIDS AND BASES (and a little Nuclear)DateAgendaHomeworkMon 5/18Notes - Reaction RatesPre-Lab – Concentration vs Reaction RateFinish Prelab if neededTues 5/19SCUBA surveys with guidanceQuiz tomorrowWed 5/20Quiz – Reaction Rates Demo – Concentration vs. Reaction RateThurs 5/21Notes – Acids and BasesLab - Introduce Indicators (Worksheet # 1 in Packet)Fri 5/22Notes – Naming Acids and Bases; Reactions with AcidsWorksheet #2 (pg 5-7)2.5 Hr DelayTues 5/26Lab – Reactions with Acids (Worksheet #3 in packet)Worksheet # 42.5 Hr DelayWed 5/27Go over HWNotes – pH Scale and CalculationsWorksheet # 5Thurs 5/28? Day Notes – Introduction to TitrationPrelab - TitrationWorksheet # 6Fri 5/30Lab – Titration (Worksheet #7 in packet)Worksheet # 8Study for TestMon 6/1Go over titration calculationsGo over Worksheet #8Study for TestTues 6/2Test – Acids and BasesStudy Guide for Final ExamWed 6/3Let’s learn about Nuclear Energy (Fission, Issues, Half Life)Worksheet #9Work on Study GuideChapter Kahoot! QuestionsThurs 6/4Work on Study Guides and Kahoot! Questions (due at 3:10)Work on Study GuideKahoot! Due at 3:10 today!Fri 6/5Kahoot! ReviewWork on Study GuideMon 6/8Go over Study Guide for FinalWork on Study GuideTues 6/9Go over Study Guide for FinalStudy for FinalWorksheet # 1 Lab Indicators and Everyday Acids/BasesDefine the following:Indicators:Procedure:Carefully dip a piece of blue litmus paper and red litmus paper and pH paper in each solution and record the resulting color.Make sure all pieces of litmus paper go into the garbage can.Put a small amount of the substance into a test tube. Add phenolphthalein and record color change. Rinse test tube.Put a small amount of substance into a test tube. Add bromothymol blue and record color change. Rinse test tube.Fill in the chart:SubstancepH PaperRed Litmus PaperBlue Litmus PaperPhenolphthaleinBromothymol BlueTonic WaterPeroxideEpsom SaltAmmoniaTap WaterSpriteSalt WaterAlka-SeltzerSugar waterMalooxBleachVinegarQuestions:List the substances that you tested turned the red litmus paper blue. List the substances turned the blue litmus paper red?Red Litmus Paper BlueBlue Litmus Paper RedSubstances that turn blue litmus paper red are called acids. Look over your list of acids. What are three properties that they share? How did they affect the other indicators?Properties:pH paper: _______________1. Phenolphthalien __________2.Bromothymol Blue ________3.Substances that turn red litmus paper blue area called bases. What are three properties that these chemicals share? How did they affect the other indicators?Properties:pH paper: _______________1. Phenolphthalien __________2.Bromothymol Blue ________3.Were any of the substances that you tested neither acidic or basic? List them here. Look up the name that is commonly used to describe these substances?Neither acidic or basicName of these substances: ______________________WORKSHEET # 2Naming Acids, Bases, Carbonates, Metals and SaltsIdentify the following as an ACID, BASE, CARBONATE, METAL or SALT.A. LiOH_________________________________________B. HCl_________________________________________C. Na2CO3_________________________________________D. Mg_________________________________________E. HBr_________________________________________F. KCl_________________________________________Write the name or formula for the following:1. hydroiodic acid______________________________2. iodic acid______________________________3. sulfurous acid______________________________4. nitric acid______________________________5. acetic acid______________________________6. magnesium hydroxide______________________________7. calcium hydroxide______________________________8. lithium hydroxide______________________________9. HCl______________________________10. H2SO4______________________________11. HClO2______________________________12. HNO2______________________________ 13. H3PO4______________________________14. KOH______________________________15. Al(OH)3______________________________Reactions with acids and metalsMetal + acid ________ + _____________HCl + _____K ______ + ______ ____HI + ___Li _____ + ______ ___HBr + ____Ba ______ + ______ Reactions with acids and carbonatesAcid + carbonate __________ + __________ + _________1. _____ HF + _____ Ca(CO3) _______ + _________ + __________2. _____ HCl + _____ Li2 (CO3) _______ + ________ + __________3. _____ HI + _____ Mg(CO3) _______ + _________ + _________Reactions with acids and basesAcid + base ____________ + _____________1. _____ NaOH + HCl _______ + ________2. _____Al(OH)3 + HF _______ + ________3. _____ Ca(OH)2 + HNO3 ______ + ________Complete and balance the following after predicting products1. Calcium and hydrobromic acid2. Iron II carbonate and chloric acid3. Barium hydroxide and nitrous acid4. Lithium hydroxide and phosphoric acid5. Aluminum and sulfuric acid6. Chromium III carbonate and acetic acidWorksheet #3 ~ Reactions with Acids LabPurposeTo examine the reaction between acids and metals To examine the reaction between acids and carbonatesProcedure Use a dropper to put some of the acid into a test tube- about ? full (carefully)Add a piece of the metal (or scoop or carbonate)ObservePour material from test tube into waste beakerSafety:DataObservations (2 for each reaction)Reaction A _____________________________________________________________________ _____________________________________________________________________Equation: _____________________________________________________________________Reaction B_____________________________________________________________________ _____________________________________________________________________Equation: _____________________________________________________________________Reaction C_____________________________________________________________________ _____________________________________________________________________Equation: _____________________________________________________________________Reaction D_____________________________________________________________________ _____________________________________________________________________Equation: _____________________________________________________________________Reaction E_____________________________________________________________________ _____________________________________________________________________Equation: _____________________________________________________________________ConclusionIn this lab, we observed 5 reactions. The acid and the carbonate reaction produced ____________________, ____________________ and ____________________. The acid and the metal reaction produced ____________________ and ____________________ .WORKSHEET # 4 ~ REVIEWNaming and writing formulas for common acids and bases1. hydrobromic acid______________________________2. sulfuric acid______________________________3. nitric acid______________________________4. acetic acid______________________________5. strontium hydroxide______________________________6. sodium hydroxide______________________________7. HI_____________________________8. H2SO3______________________________9. HClO4______________________________10. LiOH______________________________11. Al(OH)3______________________________12. H2CO3______________________________Complete and balance the following after predicting products13. Calcium and hydroiodic acid14. Copper II carbonate and perchloric acid15. Magnesium hydroxide and nitrous acidWORKSHEET # 5WORKSHEET pH1. Draw and Label a pH scale2. Calculate the pH of solutions with the following [H3O+]. Identify the solution asacidic, basic or neutral.a) 1.00 x 10-3b) 1.00 x 10-10c) 6.59 x 10-10d) 9.47 x 10-33. Find the pH of each of the following solutions and identify them as acidic, basic orneutrala) pOH = 2.00b) pOH = 8.00c) pOH = 1.263d) pOH = 9.7144. Calculate the pH of solutions with the following [OH-]. Identify the solution asacidic, basic or neutral.a) 1.00 x 10-9b) 1.00 x 10-3c) 9.56 x 10-4d) 7.49 x 10-10Find the pH and the [H3O+] of each of the following solutions and identify them as acidic, basic or neutral a) pOH = 9.50b) pOH = 3.65c) pOH = 12.63d) pOH = 1.14WORKSHEET # 6 ~ REVIEWName the following:1. HI______________________________2. HClO3______________________________3. MgCO3______________________________4. LiOH______________________________5. hydrochloric acid______________________________6. nitrous acid______________________________7. calcium carbonate______________________________8. sodium hydroxide______________________________Reactions:9. Acid + Metal _________ + __________10. Acid + Carbonate __________ + __________ + __________11. Acid + Base __________ + __________12. Calculate the [OH-] for the following [H+]a) 3.42 x 10-5b) 8.7 x 10-1013. Calculate the [H+] for the following [OH-]a)9.9 x 10-13b) 1.0 x 10-10 14. Calculate the pH of solutions with the following [H3O+]. Identify the solution asacidic, basic or neutral.4.50 x 10-10b) 6.59 x 10-5 15.Find the pH of each of the following solutions and identify them as acidic, basic orneutrala)pOH = 8.00b) pOH = 1.263 16. Draw and label the pH scaleWorksheet #7 - Acid Base TitrationPurpose:The purpose of this lab is to determine the molarity of sodium hydroxide by using the method of titration.Procedure:1. Rinse out both burets with distilled water.Fill the left buret with acetic acidFill the right buret with sodium hydroxideDrain 10.00 ml of acetic acid into a 50 ml flaskAdd 2 drops of indicator (the solution should be clear)Slowly add sodium hydroxide to the acid until the addition of one more drop turns the solution pink.Record the volume of the sodium hydroxide to the hundredth of a mlRepeat the procedure 2 more times and record dataRinse the burets with distilled water and turn upside down in clampsCalculate the molarity for each trialAverage the molaritiesCalculate the percent errorData:Write the balanced equation for the reaction:Trial 1Trial 2Trial 3Volume of AcidVolume of BaseCalculations:Trial 1:Trial 2:Trial 3:Average:Percent Error:Conclusion:In the experiment, we calculated the molarity of the base to be ______________. Our percent error was ______________. Two sources of error include:__________________________________________________________________________________________________________________________________________________________________WORKSHEET #8REVIEW – ACIDS AND BASESNaming and writing formulas for common acids and bases1. hydroiodic acid______________________________2. iodic acid______________________________3. sulfurous acid______________________________4. acetic acid______________________________5. magnesium hydroxide______________________________6. lithium hydroxide______________________________7. HCl_____________________________8. H2SO4______________________________9. HClO2______________________________10. KOH______________________________11. Al(OH)3______________________________12. H2CO3______________________________Fill in the following chart Substance[H3O+][OH-]pHpOHHCl2.50 x 10-2H2SO45.62 x 104NaOH9.82NH4OH3.6413. What is the pH scale - labelComplete and balance the following after predicting products14. Calcium and hydroiodic acid15. Copper II carbonate and perchloric acid16. Magnesium hydroxide and nitrous acidSolve for the molarity of the acid from the following data:MB = .35 MMA = ?VB = 15.4 mLVA = 16.3 mLWorksheet #9 - Nuclear EnergyWhat is nuclear fission? How does this process produce electricity?What are two benefits to using nuclear fission?What are two downsides to using nuclear fission?How long does it take a 100.00g sample of Au-l 98 to decay to 6.25g (half life = 2.69 days)? How many half-lives will pass by the time a 60.0g sample of Co-60 decays to 7.50? How long does it take a 180g sample of Au-198 to decay to 22.5g (half life = 35.0 sec)? What is the half-life of a radioactive isotope if a 500.0g sample decays to 62.5g in 24.3 hours? How old is a bone if it presently contains 0.3125g of C-14, but it was estimated to have originally contained 80.000g of C-14 (half life = 5730 yr)? ................
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