Question

REPORT SUMMARY (2pts) How many grams of copper (II) nitrate would be produced from 0.80 g of copper metal reacting with excess nitric acid? (5pts) Conversion 2 When copper (II) nitrate reacts with sodium hydroxide, blue-green copper (II) hydroxide and sodium nitrate (in solution) are produced. How many grams of copper (11) hydroxide, Cu(OH)2 can be prepared from 2.4 grams of copper (II) nitrate (Cu(NO3)2) and excess sodium hydroxide? (2pts) Write the balanced chemical equation Normal : BIILU X1 X1 EEE Sx1% (1 pts) Classify the reaction Choose. (2pts) How many grams of copper (II) hydroxide can be prepared from 2.4 grams of copper (II) nitrate (Cu(NO3)2) and excess sodium hydroxide? (5pts) Conversion 3

Answer 1

Solution : How many grams of copper (11) nitrate would be produced from 0° 80g of coppio metal neacting cutch excess Nimeadd 2 cu t 4HNO3 – Cu(NO3)2 + 2NO₃ + 2H₂O exces 0.80g nz 0.012 - 0.80 No. of moles Given mass (G.MD M.M Molecular man(MM) G.M 63.5+2(63.5+48) 63.5 = 0.012 mol G.M = 2,25g 2.25g of Cu (NO3) will be produced, 0.012 - 0.012 G.M 187.5 Conversion 2 The balanced Ca(NO3 reaction is - + 2NaOH - excess Cu(OH blue green + 2 NaNO3 2.4g Classification of reaction - Displacement reaction.

How many any grams of copper (1) hydroxide can be preparaed from 2.4g of copper (Dritrate Cu(NO₃). and excen sodicem hydroxide? Cu(NO3)2 + 2NaOH – Cu(Oth2 ton 02 +2N0 NOZ blue green сех и 2.4g na G.M rron toolt n= .M M.Mi 0.01282 G.M 97.5 Ne 2.4 187.5 7 0:0128 ..G.M = 3.679. can be prepared, ... 3.679 of copper cio hydroxide Conversion 2 The balanced chemical cequation U - 2010 ae COH)2 - a cuo + H2O - black Classification - y Decomposition rela chron. How many grams of copper (11 oxide (Cao) will be formed from 1.2g of copper (11) hydroxide, Me (OH)? Cu COH – o mo + H₂O 129 no e non hann heinen 0.0123 0.0123 G.M .G.Mz 0.977g 1.0.977g of copper (11) oxide, no will be formed Classification --- → Decomporton se action. 79.5

conversion Conveo non The balanced chemical aqua tion à – cuo & 240 – calls & H₂O exces Clasiky → Düplacement relacton. * How many grams of copper (11) chloride (Culla meill be formed from the reaction with loog of copper (Woxide? cuo + ana y Culla + H2O 1.09 - M G.M na G. Mo bbo na M.M M.M nz 70-0125 = 4.1 79.5 0.0125 n= 139.5 7.G.M = 1.689 copper (4) chloride, Culla will be forma :. 1068g of Conversion & The balanced 3 Cell & o Classify chemical equation is - 2 Al 2 A10 + 3 cu. excess o -> Displacement weaction. 16:0

& How many grams of Cu metal will be recovered from the reaction with sitgrams of copper (11) chloride fulla? 3 culla t 2 Al- & 2AlCl +3 cu 179 - G.M G.M. M.M excess na M.M 0.0126= no 1 34.5 G.M 63.5 1.7 :. G.M= 0.80g - 0.0126 .: 0.8og au metal will be recovered. work for Post- lab Calculations. All calculations are done in the pages given above.