Chemistry: Principles and Practice (3rd Edition)

Chapter 15

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To determine the dominan acid base equilibria ... more

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The first thing to notice is that we have a ... more

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No. of moles= molarity × volumeno. of moles of ... more

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using Henderson-Hasselbalch Equation more

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SOLUTION: Adding ammonium chloride, NH4Cl to an ... more

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The pH of a saturated solution of `Fe(OH)_(2)` is ... more

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Final HCl millimoles=Milli moles of NaOH ... more

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To find the percent purity, we follow 5 steps ... more

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The balanced chemical equation for the reaction is... more

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Phenolphthalein For the titration of weak acid, ... more

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HCl+NaOH --> H2O + NaClbecause the ... more

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Molarity of HI =Density×1000/MMolarity of HI =1.... more

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If work is done by the system on the surroundings... more

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When Heat is Adsorbed q=positiveWhen Heat is ... more

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Negative because the system is doing work on the ... more

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When work is done on the system, the sign of w is ... more

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The reaction that causes the burning of the gases ... more

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Work Done=PV=125Lx100 atm=12500L.atmTo kj:1 L.Atm=... more

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ΔH = ΔU + ΔPV (ΔH = change in ... more

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Internal energy1 Every system having some quantity... more

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We Know H = E = +PVAbsolute value of enthalpies ... more

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We cannot define absolute enthalpy, internal ... more

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At lower temperature the process becomes ... more

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Entropy of an element can only be zero at standard... more

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References:https://sciencing.com/phase-changes-... more

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Whether the reaction is noticeably observed or not... more

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∆G = ∆G° + RTlnQWhere ∆G is gibbs free energy ... more

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Wmax = -ΔGNegative of change in Gibbs free energy ... more

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The generic formula for the change in standard ... more

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The relation between free energy and temperature ... more

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Increasing temperature decreases value of the ... more

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When solid sodium acetate crystallizes from a ... more

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Reactants:NaHCO3 - Sodium hydrogen carbonate H2SO4... more

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HCl(g)+NH3​(g)→NH4​‍Cl(s)Δn = [0 - (1+1)] = -2 ... more

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As per First Law of ThermodynamicsThe work done at... more

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PV = nRTw = -PΔVVi = 3 mol x 0.08206 L.atm.mol-1K-... more

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Formula for work done = -(delta n)RTDelta n = ... more

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change in moles = 3 change in moles = change in ... more

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since there are no gases involved in the given ... more

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W=pΔv Vi​=12.90L×1000L1m3​=1.29×10−2m3 Vf​=... more

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Work done = -p ΔV (here p is constant ... more

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ΔE = Q − W = 555 - (-987) = 1542 J more

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ΔE = q + wΔE = -109 J + 34 JΔE = -75 J more

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according to first law of thermodynamics:delta E... more

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Given heat absorbed = 4.35 kJ = 4.35 x 103 ... more

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Heat q = -2.71 kj Exothermic process as heat goes... more

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as work done by an ideal gas in tsothermal process... more

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Work done is area under PV curve. Larger the area... more

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A glass becomes soft by the application of heat... more

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For this problem, we will solve ΔGoby using the ... more

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Using Hess law∆Grxn= ∆Gf(products) - ∆Gf(reactants... more

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Values of ∆Gf, ∆Hf, and ∆S are taken in the ... more

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ΔG=ΔGf0​(H2​O)−{ΔGf0​(H2​)+21​ΔGf0​(O2... more

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Data:The reaction is:CO(g) + 2H2(g) ----> CH3OH... more

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Entropy become positive or Increases when Liquid ... more

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Normal boiling point of methanol is 64.7°CYou can ... more

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If the temperature increases, the kinetic energy ... more

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Based on La Chatelier's principle, increasing ... more

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For Forward reaction when it is endothermic ... more

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Kc ​ is characteristic constant for a given ... more

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As the reaction is exothermic in nature according ... more

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In a reversible reaction, its process is ... more

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For exothermic Reactions Increasing the ... more

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the conversion of graphite to diamond is an ... more

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∆G°rxn = Sum of ∆G°f(products) - sum of ∆G°f(... more

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2H2O --> 2H2 + O2The reaction above shows the ... more

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The terms oxidation and reduction can be defined ... more

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Cathodic protection is a technique that makes the ... more

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Oxygen is generally always assigned an oxidation ... more

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Oxidation Number of P is +3.Oxidation number of F ... more

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This is carbon monoxideIn oxide oxygen has -2 ... more

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Oxidation Number of Nitrogen atoms- 0 (Zero) ... more

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The overall charge of the species is 0. H and O ... more

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Oxidation numbers of all atoms in IF4−​The ... more

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The central atom in the NO3- ion is nitrogen atom... more

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Additional notes/ examplesso if the compound is ... more

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MY ANSWER:Given that species Na2​‍CrO4​The ... more

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Oxygen is generally always assigned an oxidation ... more

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BaO2 has two atoms which are barium and oxygen. ... more

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Fe2O3 + 3 H2 --> 2 Fe + 3 H2OFe is reduced (... more

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CuCl2 +2 Na ---> 2 NaCl + CuHere copper is ... more

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In this reaction, the oxidation number of Oxygen ... more

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This is an oxidation-reduction (redox) reaction:3 ... more

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The balanced Chemical Equation for the Reaction is... more

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This is an oxidation-reduction (redox) reaction:3 ... more

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Mn3+(aq) --> MnO4-(aq)Balance O: Mn3+(aq) + 4 ... more

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First balance the electrons by multiplying the ... more

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Solution:Step 1: Assign oxidation numbers to each ... more

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IO3-(aq) + I-(aq) —> I2(aq)Oxidation:2I-(aq) —&... more

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The explanation of the balanced chemical equation ... more

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