ChemistrynLabnReport
Name:
Date:
Experimentn#:n4
Title:nReactionnChemistry
Purpose:nnThenpurposenofnthisnexperimentnisntonobservenvariousntypesnofnchemicalnreactionsnandnt
heirnresultsnwhichnincludensixntypesnofnsimplenchemicalnreactionsnandnreversiblenreactions.nAlso,nton
detectnchemicalnchanges,nexothermicnandnendothermicnreactionsnalongnwithncolornchangenreactions
nandndifferentnreactionsnwherenprecipitatesnform.nThenoxidation-
reductionnofnmethylenenbluenindicatornisnalsonperformedntondemonstratenthenreversibilitynofnanreacti
on.
Procedure:
Reactionn#1:nDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions:nonencontainingnAgNO3n (silvernnitrate)n
andnonencontainingnHCln(hydrochloricnacid)
2. AddnthenHClntonAgNO3
3. Putnanstoppernonnandn invertnthentestntube.
4. Observe
5. Recordnresultsnbelow
Reactionn#2:nDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions;nonencontainingnPb(NO3)2n (leadnnitrate)n
andnonencontainingnKIn(Potassiumniodide)
2. AddnthenKIntonPb(NO3)2
3. Putnanstoppernonnandn invertnthentestntube.
4. Observe
5. Recordnresultsnbelow
Reactionn#3:nAcidn–nBasenDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions:nonencontainingnNaOHn(sodiumn
hydroxide)nandnonencontainingnHCln(hydrochloricnacid)
2. Takenthentemperaturenofneachnandnrecordnbelow.
3. AddnHClntonNaOHnandnmix.
4. Takenthentemperaturenofnthenmixture.
5. Recordnresultsnbelow
Reactionn#4:nAcid-BasenDoublenDisplacementnReaction
1. Beginnwithntwontestntubes:nonencontainingnNaHCO3n (Sodiumnbicarbonate)nandnonen
containingnHCln(hydrochloricnacid)
2. AddnthenHClntonNaHCO3
3. Observenangasnformationn(CO2n gas)
4. Recordnresultsnbelow
, ChemistrynLabnReport
Reactionn#5:nEndothermicnReaction
1. ObtainnanbeakerncontainingnNH4NO3
2. Takenthentemperature.
3. Addn(BaOH)2
4. Addnwaterntonhelpncombine.
5. Takenthentemperaturenofnthenmixture.
6. Takenanpiecenofnlitmusnpaperntonchecknfornanbase
7. Recordnresultsnbelow
Reactionn#6:nSinglenDisplacementnReaction
1. MixnZincnmetaln(greyncolor)nandnHCln(hydrochloricn acid)
2. Takenthentemperaturenbeforencombining.
3. Mixnthensolutions.
4. ObserventhenH2ngasnformation.
5. Takenthentemperature.
6. Recordnresultsnbelow
Reactionn#7:nSinglenDisplacementnReaction
1. BeginnwithnanbeakernwithnAgNO3n (silvernnitrate)nandnanbeakernofncopper.
2. CombinenthenAgNO3n withnthencopper.
3. Stir
4. Observe
5. Recordnresultsnbelow
Reactionn#8:nCombustionn(Burning)nReaction
1. Strikenanmatch.
2. Observe
3. Recordnresultsnbelow
Reactionn#9:nCombustionn(Burning)nReaction
1. Strikenanmatch.
2. Lightnancandle.
3. Observe
4. Recordnresultsnbelow
Reactionn#10:nDecompositionnReaction
1. Beginnwithntwontestntubes;nonencontainingnH2O2n (hydrogennperoxide)nandnonencontainingn
MnO2n(manganesendioxide)
2. CombinenthenH2O2nandnMnO2
3. Observe
4. Recordnresultsnbelow
Name:
Date:
Experimentn#:n4
Title:nReactionnChemistry
Purpose:nnThenpurposenofnthisnexperimentnisntonobservenvariousntypesnofnchemicalnreactionsnandnt
heirnresultsnwhichnincludensixntypesnofnsimplenchemicalnreactionsnandnreversiblenreactions.nAlso,nton
detectnchemicalnchanges,nexothermicnandnendothermicnreactionsnalongnwithncolornchangenreactions
nandndifferentnreactionsnwherenprecipitatesnform.nThenoxidation-
reductionnofnmethylenenbluenindicatornisnalsonperformedntondemonstratenthenreversibilitynofnanreacti
on.
Procedure:
Reactionn#1:nDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions:nonencontainingnAgNO3n (silvernnitrate)n
andnonencontainingnHCln(hydrochloricnacid)
2. AddnthenHClntonAgNO3
3. Putnanstoppernonnandn invertnthentestntube.
4. Observe
5. Recordnresultsnbelow
Reactionn#2:nDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions;nonencontainingnPb(NO3)2n (leadnnitrate)n
andnonencontainingnKIn(Potassiumniodide)
2. AddnthenKIntonPb(NO3)2
3. Putnanstoppernonnandn invertnthentestntube.
4. Observe
5. Recordnresultsnbelow
Reactionn#3:nAcidn–nBasenDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions:nonencontainingnNaOHn(sodiumn
hydroxide)nandnonencontainingnHCln(hydrochloricnacid)
2. Takenthentemperaturenofneachnandnrecordnbelow.
3. AddnHClntonNaOHnandnmix.
4. Takenthentemperaturenofnthenmixture.
5. Recordnresultsnbelow
Reactionn#4:nAcid-BasenDoublenDisplacementnReaction
1. Beginnwithntwontestntubes:nonencontainingnNaHCO3n (Sodiumnbicarbonate)nandnonen
containingnHCln(hydrochloricnacid)
2. AddnthenHClntonNaHCO3
3. Observenangasnformationn(CO2n gas)
4. Recordnresultsnbelow
, ChemistrynLabnReport
Reactionn#5:nEndothermicnReaction
1. ObtainnanbeakerncontainingnNH4NO3
2. Takenthentemperature.
3. Addn(BaOH)2
4. Addnwaterntonhelpncombine.
5. Takenthentemperaturenofnthenmixture.
6. Takenanpiecenofnlitmusnpaperntonchecknfornanbase
7. Recordnresultsnbelow
Reactionn#6:nSinglenDisplacementnReaction
1. MixnZincnmetaln(greyncolor)nandnHCln(hydrochloricn acid)
2. Takenthentemperaturenbeforencombining.
3. Mixnthensolutions.
4. ObserventhenH2ngasnformation.
5. Takenthentemperature.
6. Recordnresultsnbelow
Reactionn#7:nSinglenDisplacementnReaction
1. BeginnwithnanbeakernwithnAgNO3n (silvernnitrate)nandnanbeakernofncopper.
2. CombinenthenAgNO3n withnthencopper.
3. Stir
4. Observe
5. Recordnresultsnbelow
Reactionn#8:nCombustionn(Burning)nReaction
1. Strikenanmatch.
2. Observe
3. Recordnresultsnbelow
Reactionn#9:nCombustionn(Burning)nReaction
1. Strikenanmatch.
2. Lightnancandle.
3. Observe
4. Recordnresultsnbelow
Reactionn#10:nDecompositionnReaction
1. Beginnwithntwontestntubes;nonencontainingnH2O2n (hydrogennperoxide)nandnonencontainingn
MnO2n(manganesendioxide)
2. CombinenthenH2O2nandnMnO2
3. Observe
4. Recordnresultsnbelow
