A. in a laboratory.preparation of crystal of CU5O4 a Green powder Q was added to dilvte H25o4 and stirred...ÉFferuescence occured and a gas R was given off which turn line water milky excess Q was removed frm the mixture d solution of Cu504 was cn centrated to half its original volume and allowed to stand i) wat subtance is Q ii)name gas iii)why was excess Q used iv)hw would yu know dat d reaction is complete v) wat method was used to remove excess Q vi)why was solution of cu504 nt heated in dryness i wil sent (B)name d reagent 5 used 4 testing each of d followin in it laboratory.. 1)water 2) primary ALKAUOL laboratory experiment to diffenciate btw 1) ALKANAL AND ALKANONE 2)ALKANE ND ALKENE 3)ALKeNE nd ALKYI 4) ETHANE,ETHYLAND ETHENE...
1.] A is a solution of HCl acid. B contains 5.8gdm-3 of potassium Hydroxide (KOH) solution a) put A into d burrete and titrate it against 20.00cm-3 or 25.00cm-3 portion of B using methyl orange as indicator. Record the volume of ur pipette. Tabulate ur burette readings and calc. d average volume of A used the equation of the reaction is: HCl(aq) KOH(aq)=KCl(aq) H2o (i) b) from ur result and info provided cal i. concentration of B in moldm-3 ii. molar concentration of A in moldm-3 [H=1,O=16,K=39]2.] A is a solution cointaing 0.103ldm-3 HX. B is a solution cointaning 5.6gdm-3 of KOHL a) put A into the burette and titrate it against 20.00cm-3 or 25.00cm-3 portion of B using methyl orange as indicator. Record the vol of ur pipette. Tabulate ur burette readings and calc. the average vol of A used the equation of the reaction is: HCl(aq)+KOH(aq)=KCl(aq) +H2o(l) From ur result and info provided calc. i. concentration of B in moldm-3 ii. molar concentration of A in moldm-3 [H=1,O=16,CL=35.5,K=39]2 A is a solution containing HCl acid. B contains 5.6moldm-3 of XOH solution, put A into d burette and titrate it against 20.00cm3 or 25.00cm3 portions of B using methyl orange as indicator. Record d vol of ur pipette. Tabulate ur burette reading and calculate d average vol of A used. The equqtion for the reaction is: XOH(aq)+HCl(aq) =XCl(aq)+H2o(l) From ur result,
PART B[QUANTITATIVE ANALYSIS
C is a mixture of 2 simple lnorganic salts. Carry out the following test on C, record ur obervation and lndentify any gases evolved. State the conclusion you draw from the result of each test.
(A) Put all C in a test tube add abt 10cm3 of distiled water stir,filter and keep the residue.
(B) Put the residue into a testube,add abt 5cm of dil Hcl acid.shake to disolved.
(Bi) To abt 2cm3 of the soln add NaoH {aq} in drops and in execess.
(Bii) To anoda 2cm3 of portion of the soln add aqeous ammonia in drops then in execess.
(Ci) To about 2cm3 portion of the filterate, add few drops of dil HNO3 acid then 1cm3 of AgNo3 soln.
(Cii) To the mixture in Ci above add aqeous Ammonia in excess..
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