1 5.1 Notes (slides #1-4) (p ) Assignment: Read p Acid/Base Data Booklet w.s. (p. 121) Do Key Terms (p )

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1 Name: Unit 2 Outline Chemistry Chapter 5: Acids & Bases DAY OUTLNE KEY TERMS Notes (slides #1-4) (p ) Assignment: Read p Acid/Base Data Booklet w.s. (p. 121) Do Key Terms (p ) Notes (slides 5-8) (p ) 1. Acids Assignment: Readp. Do Names & Formulae of Acids & Bases w.s. 3. ndicators (p. 122) 4. ph Read Acid/Base Lab in preparation for tomorrow Bases 3 Acid/Base Lab Notes (p. 123) 5. salts Assignment: Readp. Recognizing Acids, Bases and Salts w.s. (p. 124) 7. metal oxides Metal oxides and Non-metal oxides w.s. (p. 125) Quiz 8. organic 5.3 Notes (p. 126) compounds Assignment: Readp. compounds 10. hydrocarbons 11. alcohols non-metal oxides inorganic 8,1O,ll (p. 127 in pckg) p. 25l#1-5,7, Quiz Assignment: Ch.5 Review p #l,2,5,6,9,l 1-13, 15-18,19(a,c,e),20(a,c,e),21-23 (p in pckg) 5.1, 5.2 and 5.3 Assessment w.s. (p ) 7 Ch.5 Test Ch.5 Pkg Due

2 Chapter 5: Acids & Bases - Key Terms Key Term Definition Example/Graphic 1. Acid 2. Base 3. ndicators 4. ph 5.Salts

3 6. Non-metal oxides 7. Metal oxides 8. Organic compounds 9. norganic compounds 10. Hydrocarbons 11. Alcohols

4 Acids and Acids and bases can be very and are very common. ph is measured by other chemicals called ph ndicators ph below 7 = try to identify an acid or base by taste or touch! 5.1 Acids and Bases colours of litmus paper: Blue = (>7) & Red = (<7). the most common indictor. solution using electrical probes to measure how solutions conduct electricity. by a that measures the electrical conductivity of the decrease of 1 on the ph scale indicates more acidic Acids Neutral Bases ph 7 = ph above 7 = The of acids and bases is measured on the ph scale Each Eg. ph 4 is 10 X more acidic than ph 5 & ph 3 is 1000X more acidic than ph6 The ph of acids and bases be determined by sight. nstead, or is ph indicators change based on the solution they are placed in. - 2 f you know a compound s, you may be able to identify it as an acid. Acids Therefore, The chemical formula of an acid usually starts with Acids HC = hydrochloric acid, HNO = nitric acid, CH COOH = acetic acid (aq) 3(aq) 3 (aq) A...J, with a carbon usually have the C written first. acids are often written with subscript (aq) = = water often behave like acids only when dissolved in ph Scale

5 Hydrogen Hydrogen+...-ide=Hydro...icacid HF = hydrogen fluoride = hydrofluoric acid (aq) Hydrogen +...-ate =...ic acid H CO = hydrogen carbonate = carbonic acid 2 3(aq) +...-ite =...ous acid H SO = hydrogen sulphite = sulphurous acid 2 3(aq) Bases f you know a compound s chemical formula, you may be able to identify it as a Bases, Therefore, like acids, often behave like bases only when dissolved in bases are often written with subscript (aq) = aqueous = water The chemical formula of a base usually ends with Examples of common bases: NaOH, Mg(OH), Ca(OH), NH OH (aq) 2(aq) 2(aq) 4 (aq) Production of ons Acids and bases can conduct electricity because they release in solution. + Acids release ions, H (aq) Bases release OH (aq) The ph of a solution refers to the of ions it has. Square brackets are used to signify concentration, [H 1. [OH (aq) + High[H 1= veryacidic (aq) High [OH =, very basic (oq) + (aq) A solution have BOTH high [H and [OH }; they cancel (aq) (aq) each other out and form water. This process is called + + L.L fill L (1

6 c) neutral: c) ph9: 4. Solution A has a ph of 3. Solution B has a ph of f methyl red is ORANGE what is the ph range of your solution? b) base: b) ph7: a) 2. What color is litmus paper in an acidic solution? a) ph5: 3. What color is bromothymol blue at the following ph levels? acid: 1. For each of the following, write the corresponding ph values: Use your data book to answer the following questions. Science Acid/Base Data Booklet Worksheet Assignment Name: Block: Date: 7. f bromthymol blue is YELLOW and methyl orange is YELLOW what range is you ph c) soap f) baking soda Red litmus paper Blue litmus paper solution? ndicator Color at pill Color at ph 7 Color at ph 10 b) How many times more acidic is it? a) Which solution is more acidic? 5. Complete the following chart: 8. What color will phenolphthalein be if placed in a bleach solution? a) milk d) grapes 9. Write the ph value you would expect for each of the following items: _ b) lemons e) water

7 Name: Block: Date: Science Names & Formulae of Acids & Bases 1. a) How can you recognize an acid by its chemical formula? b) Which acid is an exception to this rule? 2. Complete the following table of acids. The first row has been completed as an example. Name of Substance Chemical Formula Name of Acid a) hydrogen suiphide H2S hydro sulphuric acid 3 b) H2C0 c) phosphoric acid d) hydrogen chlorate e) suiphurous acid f) CH3COOH g) hydrogen iodide 3. How can you recognize a base by its chemical formula? 4. Complete the following table of acids and bases. ndicate whether each compound is an acid or a base. Name of Substance Chemical Formula Acid or Base? a) hydrochloric acid HC1 Acid b) NaOH c) hydrogen nitrate d) magnesium hydroxide e) chiorous acid 4OH f) NH

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9 Name Date Comprehension Use with textbook pages Recognizing acids, bases, and salts 1. State whether each of the following is an acid, a base, or a salt. 4)3 (a) H () A1 2(S0 (b) HBr (m) CH3COOH 2 (c) KOH (n) Mg(CH 3COO) 3 (d) HNO (o) calcium nitrate (e) NaOH (p) sodium chloride (f) H2S0 4 (q) hydrocyanic acid 3 (g)h2c0 4 (h)h3p0 (r) (s) hydrogen fluoride barium hydroxide (i) 3PO4 Na (t) hypochlorous acid (j) 2 Sr(OH) (u) aluminum hydroxide 2 (k) Ca(OH) 2. What acid is present in vinegar? (v) magnesium carbonate 3. What is the chemical name for table salt? 4. What acid is used in automobile batteries? 5. What base is found in drain and oven cleaners? 6. What base is the active ingredient in some antacids? 7. What acid is produced in the stomach to help digest food? 9flfl FA rw_wi T,+.. Qj

10 (b) B203 (b) SO3 + (f) BeO Analyzing nformation Use with textbook pages 237. Metal oxides and nonmetal oxides 1. What element reacts with a metal or a non-metal to form an oxide? 2. What is a chemical compound that contains a metal chemically combined with oxygen? 3. What is a chemical compound that contains a non-metal chemically combined with oxygen? 4. What happens to a solution when a metal oxide dissolves in water? 5. What happens to a solution when a non-metal oxide dissolves in water? 6. What is formed when a metal oxide reacts with water? 7. What is formed when a non-metal oxide reacts with water? 8. Classify each of the following as a metal oxide or a non-metal oxide. (a) Na 20 (e) SO2 (c) NO2 (d) CaO (g) ClO (h) Li ndicate whether an acid or a base wilt be produced. (a)mgo + H20 * H20 - (c)cao + (d) CO2 + H20 1 )rhq A,L-H 1;,, + A1-iD Q

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15 Assessment MHR Section 5.1 Acids and McGraw-Hill Ryerson Limited 94 MHR Section 5.2 Salts 2008 McGraw-Hill Ryerson Umiled Date Assessment Name Date ith textbook pages ids and bases Match the Term on the left with the best scriptor on the right. Each Descriptor may be used only once. cid base neutral _ph scale...corrosive...ph ndicator _concentration of idrogen A. a solution with a p1-i of 7 B. can burn skin or eyes on contact C. number of hydrogen ions in a specific volume of solution 0. a chemical compound that produces a solu tion with a ph less than 7 E. a number scale for measuring how acidic or basic a solution is F. a chemical compound that produces a solution with a ph greater than 7 6. a chemical that changes colour depending on the ph of the solution it is placed_in Vhich of the following describes acids?. has a ph of less than 7 T. can conduct electricity N. produce hydroxide ions when dissolved in solution. land only. and only. and only )., U, and 9. What happens to the number of H* after H2S0 4 is added to water? A. it increases B. it decreases C. it stays the same 10. Which of the following is a base? A. KC1 C. LiOH B. HBr 0. BNO What is the name for HC1O 3? A. chloric acid B. chlorous acid C. perchioric acid D. hypochiorous acid 12. What is the chemical formula for sulphurous acid? A. HS C. H,S0 3 B. HSO 0. H2SO 13. What is the ph of a substance that causes methyl orange to turn yellow and methyl redtoturnred? A.3 C.6.5 B Which of the following would occur if eggs were tested with various ph indicators?. indigo camline turns blue N. phenoiphthalein turns pink Ni. bromothymoi blue turns blue A. land only B.and]flonly C. U and ifi only D. 1,11, and ifi Use with textbook pages Salts Match the Term on the left with the best Chemical Formula on the right. Each Chemical Formula may be used only once. 1. water A. 2. a salt B. NO2 3. a base C. MgC 4. an acid 0. Na a metal oxide E. i-i 2CO3 6. a non-metal F. NH 4OH oxide. 7. Which of the following metals is most reactive? A. copper B. sodium C. francium D. magnesium 8. When non-metal oxides dissolve in water, the solution becomes A. basic B. acidic C. neutral 9. Carbon dioxide forms which of the following in water? A. CO B. CO3 C. HC0 D.H 2C What coefficient is needed for sodium hydroxide in order to balance the following equation? H2S0 4 NaOH -+ Na 2SO4 + H20 A.l 0.3 B Hydrochloric acid can be used to neutralize potassium hydroxide. What is the formula for the salt produced by this neutralization? A.Hp B. KC C. KC1O 2 0. KC1O Which reactants form the salt FePO 4 in a neutralization reaction? A. P0 4 and Fe 203 B. H3P and Fe(OH) 3 C and Fe(OH) 3 0. H3P0 4 and Fe(OH) 3 Use the following acid-base neutralization reaction to answer question 13. H2C0 3 + Ba(OH) 2 -* BaCO 3 + 2H Which of the following statements is true? t. H2C0 3 s an acid. ii. BaCO 3 is a base. ill. The preducts of this reaction are a salt and water. A. and only B. and ifi only C. and ifi only D., U, and

16 Name Date Assessment Use with textbook pages Organic compounds 7. Which of the following represents an alcohol? A. H H Using the compound ethane, match the Descriptor on the left with the best Formula Model that represents ethane on the right. Each Formula Model may be used only once. 1. structural formula 2. molecular formula 3, space-filling model 4. ball-and-stick model A. C2H6 B. H H H c c H 5. What element must always be present in an organic compound? A. carbon B. oxygen C. chlorine 0. hydrogen 6. Which formula represents a hydrocarbon? A. HC1O 3 B. CH3COOH C.CH3CH2CH2COOH C. D. CH3CH2CH2C{ 2CH3 - - H H B. H H H c c H H C C. H H H H c c c H Br Br H 0. 1j 1j H c c c c OH H H H H 8. Which of the following represents methane, CH4?. a ll. A. and only B. and ifi only C. and only 0.1,, and ifi ii H c O-- H l )flfl r.,,,,_-1) rr.i+.,1 fli