Types of Reactions and Titration Calculations in Chemistry
School
East Kentwood High School**We aren't endorsed by this school
Course
ENGLISH 12
Subject
Chemistry
Date
Dec 12, 2024
Pages
2
Uploaded by ProfessorSnowWren78
Chapter 4 WorksheetChemistry& 161ZijlstraGreen River College – Updated 10/24/2024Page 1 of2Name:Score /20 pointsPart A: Types of Reactions and BalancingInstructions:(1)Complete the equations as needed (including all states)(2)Balance the equations(3)Identify the type of reaction: single replacement (SR), double replacement (DR), combination (Combo), decomposition (D), or combustion (C)(4)Identify the reactions as precipitation, acid-base neutralization, and/or redox (where applicable)(5)Double check if the reaction takes place based on solubility rules and/or activity series.(6)For 1, 3, 9, and 12 include the oxidation numbers, oxidizing agent, reducing agent, # of electrons transferred (if any).Type:C 1.C4-2H8+1(g)6 O20(g)4 C+4O2-2 (g) + 4 H2O (g) redoxDR 2.Al2(CO3)3 (aq)6 NaNO3(aq)2 Al(NO3)3 (aq) +3Na2CO3 (aq)Combo 3.2Li0 (s)Br2 0(l)2 LiBr (aq) redoxD 4.2Na2CO3 (s)4Na (s)+ 2C (s)+3O2 (g)redoxSR 5.Mg (s)+2CuCl (aq)MgCl2 + 2Cu (s)redoxDR 6.3CaCl2 (aq)+ 2Al(NO3)3 (aq)3 Ca(NO3)2 (aq) + 2 AlCl3 (aq)SR 7.2 AlPO4 (s)+Ca (s)Ca(PO4)2 +2 Al (s)redoxC 8.C3H8 (g)+ 5O2 (g)3CO2(g)+4 H2O (g)redoxCombo 9.2Ca (s)+O2 (g)2 CaO (s)redoxD 10.2N2O5 (g)2N2 (g)+5O2 (g)redoxD 11.2Al(ClO3)3 (s)9 O2 (g)+2AlCl3*redoxDR 12.2SbCl3 (aq)+ 3(NH4)2S (aq)Sb2S3(s) + 6 NH4CL (aq)pptD 13.NaNO3 (s) 2NaNO2 (aq)+O2 (g)redoxDR 14.2Bi(NO3) (aq)+H2S (g)Bi2S +2HNO3redox
Chapter 4 WorksheetChemistry& 161ZijlstraGreen River College – Updated 10/24/2024Page 2 of2Part B: Titrations1.The amount of iron in an iron ore is determined by converting the Fe to FeSO4, followed by a titration with a solution of K2Cr2O7 in the presence of sulfuric acid as shown below.FeSO4 (aq) + K2Cr2O7 (aq) + H2SO4 (aq) Fe2(SO4)3 (aq) + Cr2(SO4)3 (aq) + K2SO4 (aq) + H2O (l)a.What is the molarity of Fe2+ 21.85 mL of 0.250 M K2Cr2O7 is required for the titration of30.0 mL of FeSO4 solutions?b.If the original sample of iron ore had a mass of 2.58g what is the mass percent of iron in the ore?2.What volume of 0.1292 M Ba(OH)2 would neutralize a 50.00 mL of a 0.1000 M HCl solution?3.Calculate the molarity of a solution of KOH if 18.15 mL of it is required for the titration of a20.00 mL sample of 0.2452 M HNO3 solution.4.The active ingredient in an aspirin tablet is acetylsalicylic acid HC9H7O4, which is mixed with inert binding agents and fillers. An aspirin tablet dissolved in water requires 14.10 mL of 0.128 M NaOH for complete reaction of the acetylsalicylic acid. What mass of acetylsalicylic acid is in the tablet? (the acid is mono-protic)0.09