Please write clearly and answer 1 to 5 clearly Part VI: Solubility Problems Use

Question

Please write clearly and answer 1 to 5 clearly Part VI: Solubility Problems Use the solubility table to answer the following. You do not need to mix any chemicals. 1. Circle all of the following compounds that will not dissolve completely (or form a ppt) in HCl(aq) Al(OH)(s) CuCOs(s) Pb(NO,)2(aq)CaSO4(s) BaCla(aq) AgNOa(aq) 2. Circle all of the following solutions that will not precipitate with addition of CuSO4 NaOH(aq) BaCl2(aq) Pb(NOs)a(aq) KCOs(aq) CuCla(aq) NHCI(aq) 3. Circle all of the following compounds that will precipitate with addition of Mg(IOs)2(aq) CuCla(aq) NHOH(aq) ZnSo4(aq) Ba(NOs)a(aq) Pb(NOs)a(aq) KaCOs(aq) 4. Write the precipitate(s) that will form and remain when the following solutions are mixed: excess H2SO4(aq)+ Pb(NOs)2(aq)+ KaCOs(aq) excess NaOH(aq)+ MgCla(aq)+ ZnSO4(aq) ppt(s)- ppt(s)- 5. A student divides an unknown compound into two tests tubes and performs these tests: When excess Pb(NOs) is added to the first tube there is a precipitate When excess HaSOs is added to the second test tube there is a precipitate When KIOs is added to the third tube there is a precipitate The compound could be (1 only): FezlSOp AgNO, Ba(OH) Cacla

Explanation / Answer

1) Pb(NO3)2 , AgNO3

2) K2CO3(aq) , CuCl2(aq) ,NH4Cl(aq)

3) CuCl2(aq) , NH4OH(aq), ZnSO4(aq),Ba(NO3)2(aq), Pb(NO3)3(aq)

4) i) PbSO4

ii) Mg(OH)2 , Zn(OH)2

5) the compound is Ba(OH)2

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