Allejandra Chavezchem lab 6.pdf

Allejandra Chavezchem lab 6.pdf - Allejandra Chavez...

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Allejandra Chavez Chemical Reactions October 20, 2017 Part A 1. 2. a. 2AgNO 3(aq) + Na 2 CrO 4(aq) AgCrO (s) + 2NaNO 3(aq) 2Ag + (aq) + 2NO 3 - (aq) + 2Na + (aq) + CrO 4 2- (aq) AgCrO (s) + 2Na + (aq) + 2NO 3 - (aq) 2Ag + (aq) + CrO 4 2- (aq) AgCrO (s) b. 3Na 2 CrO 4(aq) + 2Cr(NO 3 ) 3 6NaNO 3(aq) + Cr 2 (CrO 4 ) 3(aq) 6Na + (aq) + 3CrO 4 2- (aq) + 2Cr 3+ (aq) + 6NO 3(aq) 6Na + (aq) + 6NO 3(aq) + 2Cr 3+ (aq) + 3CrO 4 2- (aq) No reaction c. Pb(NO 3 ) 2(aq) + 2NaI (aq) PbI 2(s) + 2NaNO 3(aq) Pb 2+ (aq) + 2NO 3 - (aq) + 2Na + (aq) + 2I - (aq) PbI 2(s) + 2Na + (aq) + 2NO 3 - (aq) Pb 2+ (aq) + 2I - (aq) PbI 2(s) Part B 1. a. HCl (aq) + KOH (aq) KCl (aq) + H 2 O (l) Reactants Na 3 PO 4 NaI Na 2 CrO 4 AgNO 3 Ag 3 PO 4 Silver (III) Phosphate Yellow AgI Silver Iodide Beige Ag 2 CrO Silver (II) Chromate Dark brown rusty red Cr(NO 3 ) 3 CrPO 4 Chromium Phosphate White/grey No reaction No reaction Pb(NO 3)2 Pb 3 (PO 4 ) 2 *** Lead (III) Phosphate PbI 2 Lead Iodide Neon Yellow PbCrO 4 Lead Chromate Extra opaque neon yellow
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H + (aq) + Cl - (aq) + K + (aq) + OH - (aq) K + (aq) + Cl - (aq) + H 2 O (l) H + (aq) + OH - (aq) H 2 O (l) b. NiCO 3(s) + 2HNO 3(aq) H 2 O (l) + CO 2(aq) + Ni(NO 3 ) 2(aq) NiCO 3(s) + 2H + (aq) + 2NO 3 - (aq) H 2 O (l) + CO 2(g) + Ni + (aq) + 2NO
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