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OpenStaxChemistry: Atoms First 2e15.1: Precipitation and DissolutionChemistry: Atoms First 2e15: Equilibria of Other Reaction Classes15.1: Precipitation and Dissolution1. Complete the changes in concentrations for each of the following reactions:(a)AgI( )Ag ()I ()_____saqaqx (b)2233CaCO ( )Ca()CO()_____saqaqx (c)22Mg(OH) ( )Mg()2OH ()_____saqaqx (d)233424Mg (PO ) ( )3Mg()2PO()_____saqaqx (e)235434Ca (PO ) OH( )5Ca()3PO()OH ()__________saqaqaqx SolutionIn dissolution, one unit of substance produces a quantity of discrete ions or polyatomic ions thatequals the number of times that the subunit appears in the formula.(a)+AgI( )Ag() +I ()saqaqxx  Dissolving AgI(s) must produce the same amount of Iion as it does Ag+ion.(b)2+2–33CaCO ( )Ca() + CO()saqaqxx  Dissolving CaCO3(s) must produce the same amount of Ca2+ion as it does23COion.(c)22Mg OH( )Mg()2OH ()2saqaqxx    When one unit of Mg(OH)2dissolves, two ions of OHare formed for each Mg2+ion.(d)23–3442MgPO( )3Mg()2PO()32saqaqxx  One unit of Mg3(PO4)2provides two units of34POion and three units of Mg2+ion.(e)23–5443CaPOOH( )5Ca()3PO()OH ()53saqaqaqxxx  One unit of Ca5(PO4)3OH dissolves into five units of Ca2+ion, three units of34POion, and oneunit of OHion.Page 1 of 15
OpenStaxChemistry: Atoms First 2e15.1: Precipitation and Dissolution3. How do the concentrations of Ag+and4CrOAg2CrO4change when 100 g of solid Ag2CrO4is added to the system? Explain.2in a saturated solution above 1.0 g of solid
5. What additional information do we need to answer the following question: How is theequilibrium of solid silver bromide with a saturated solution of its ions affected when thetemperature is raised?7. Which of the following slightly soluble compounds has a solubility greater than that calculated
from its solubility product because of hydrolysis of the anion present: AgCl, BaSO4, CaF2, Hg2I2,MnCO3, ZnS, PbS?9. Write the ionic equation for the dissolution and theKexpression for each of the following
spslightly soluble ionic compounds:(a) LaF3(b) CaCO3(c) Ag2SO4(d) Pb(OH)2KK

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