Chapter 4 OWL study questions

Chapter 4 OWL study questions - There are 6 strong acids...

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Unformatted text preview: There are 6 strong acids you need to know. List their names and formulas below: Names hydrochloric acid ...... 4. nitric acid sulfuric acid 5. perchloric acid hydriodic acid 6. hydrobromic acid Formulas 1. Your response: Correct answer: HCl HCl HCl ...... 4. Your response: Correct answer: HNO 3 HNO 3 HNO_3_ Classify ... In solution this acid should be written as: wa 1. hydrofluoric acid Your response: Correct answer: HF HF(aq) HF(aq) sa 2. perchloric acid Your response: Correct answer: HClO 4 H + (aq) + ClO 4- (aq) H^+^(aq) + ClO_4_^-^(aq) wa 3. hydrocyanic acid Your response: Correct answer: HCN HCN(aq) HCN(aq) Click on Chemical Formulas above if you need help writing formulas. Feedback: The six strong acids are: HCl, HBr, HI, HNO 3 , HClO 4 and H 2 SO 4 . All other acids are considered weak. Strong acids are strong electrolytes . When they dissolve in water they dissociate completely into ions . We represent this by writing them as ions in aqueous solution. Weak acids are weak electrolytes . When they dissolve in water they only slightly dissociate into ions. We represent this by writing them undissociated in aqueous solution. hydrofluoric acid , HF is a weak acid. Keep it together in aqueous solution ... HF(aq) perchloric acid , HClO 4 is a strong acid. Write it as ions in aqueous solution ... H + (aq) + ClO 4- (aq) hydrocyanic acid , HCN is a weak acid. ... HCN(aq) Keep it together in aqueous solution Classify each of the following substances: 6 CaF 2 6 PbI 2 1 HCl 3 Ca(OH) 2 2 H 3 PO 4 1) strong acid 2) weak acid 3) strong base 4) weak base 5) salt: soluble 6) salt: not soluble Classify each of the following substances: 5 CaBr 2 4 NH 3 1 HBr 3 Ca(OH) 2 2 H 2 S 1) strong acid 2) weak acid 3) strong base 4) weak base 5) salt: soluble 6) salt: not soluble Classify each of the following substances: 6 BaCO 3 1 H 2 SO 4 2 H 2 SO 3 3 Ba(OH) 2 1) strong acid 2) weak acid 3) strong base 4) weak base 5) salt: soluble 6) salt: not soluble 4 NH 3 Classify each of the following substances: 6 Fe 3 (PO 4 ) 2 3 KOH 1 HI 2 H 3 PO 4 6 Fe 2 (CO 3 ) 3 1) strong acid 2) weak acid 3) strong base 4) weak base 5) salt: soluble 6) salt: not soluble Classify each of the following substances: 1 HBr 2 HCN 1 HCl 1 HClO 4 4 NH 3 1) strong acid 2) weak acid 3) strong base 4) weak base 5) salt: soluble 6) salt: not soluble Classify each of the following substances: 5 Ba(ClO 4 ) 2 3 Ca(OH) 2 1 HBr 1) strong acid 2) weak acid 3) strong base 4) weak base 5) salt: soluble 6) salt: not soluble 3 KOH...
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This note was uploaded on 02/22/2009 for the course CHEM 102a taught by Professor Hanusa during the Fall '06 term at Vanderbilt.

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Chapter 4 OWL study questions - There are 6 strong acids...

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