Reactants Lab Essay Example for Free

Reactants Lab EssayAspect 1 Problem What subject of chemical reactions occurs when different reactants are mixed?Variables Manipulated Combination of reactantsResponding case of chemical ReactionControlled 1. selfsame(prenominal) gist of reactants used (1 piece for solids, 4 drops for semi liquid states)2. Spot plate is washed before reactants are mixed3. Same amount of time fondness is everyowed for chemical reaction to occur (15s)4. Because data is qualitative, comments testament be make by the same mortal.Aspect 2 Controlling Variables The same amount of reactants being used will be controlled by using the same amount of reactants in each reaction (1 piece for solids, 4 drops for liquids). Spot plate will be washed before each chemical reaction (using the urine from the squeeze bottle) to ensure no residue is left from previous reaction.Observations will be made 15 seconds after the chemical raction. Time will be kept using a watch.The same person will make qualitat ive observations, to ensure that observations are kept consistent.Aspect 3 Materials Spot house Forceps Squeeze Bottle filled with water supply ToothpickList of ReactantsFig. 1.1ReactantChemical Formulaaluminum (s)Al (s) papal bull (II) chloride (aq)CuCl2 (aq)barium hydroxide (aq)Ba(OH)2 (aq)sulphuric acid (aq)H2SO4 (aq)chlorine (aq)Cl2 (aq)sodium bromide (aq)NaBr (aq)zinc (s)Zn (s) bulls eye (II) sulphate (aq)CuSO4 (aq)hydrochloric acid (aq)HCl (aq)atomic number 12 hydroxide (aq)Mg(OH)2 (aq) atomic number 20 chloride (aq)CaCl2 (aq)sodium carbonate (aq)Na2CO3 (aq)calcium (s)Ca (s)water (l)H2O (l)sodium acetate (aq)C2H3NaO2 (aq)magnesium (s)Mg (s)sodium hydroxide (aq)NaOH (aq)cobalt chloride (aq)CoCl2 (aq)List of Chemical ReactionsFig. 1.2Reactant 1Reactant 2sulphuric acid (aq)barium hydroxide (aq)hydrochloric acid (aq)magnesium hydroxide (aq)calcium (s)water (l)hydrochloric acid (aq)sodium acetate (aqzinc (s)copper (II) sulphate (aq)cobalt chloride (aq)sodium hydroxide (aq)magnesi um (s)hydrochloric acid (aq)sodium bromide (aq)chlorine (aq)aluminum (s)copper (II) chloride (aq)Procedure1. Wash space plate thoroughly with water from squeeze bottle.2. Choose a combination of reactants from Fig. 1.13. Write down somatic properties of reactants.4. Mix reactants. Record observations.5. Wash spot plate thoroughly, making sure reactants fall into a spoil bucket.6. Repeat steps 1-4 using all the other combinationsData Collection and Processing (DCP)Aspect 1 Observation Chart of Chemical ReactionsFig. 1.3Reactant 1Chemical FormulaReactant 2Chemical FormulaPr-reaction observationPost-reaction observationsulphuric acid (aq)H2SO4 (aq)barium hydroxide (aq)Ba(OH)2 (aq)Two logical liquidsMilky-white substance. Gas bubbles multifariousness.hydrochloric acid (aq)HCl (aq)magnesium hydroxide (aq)Mg(OH)2 (aq) aboveboard liquidsTransparent liquidhydrochloric acid (aq)HCl (aq)sodium acetate (aq)C2H3NaO2 (aq)Transparent liquidsTransparent liquidcalcium (s)Ca (s)water (l)H2O (l) Flaky-white solid, and transparent liquidCalcium dissolves a bit in water. A few gas bubbleszinc (s)Zn (s)copper (II) sulphate (aq)CuSO4 (aq)Grey rocky solid, with blue(a) liquidGas bubbles form on zinccobalt chloride (aq)CoCl2 (aq)magnesium hydroxide (aq)Mg(OH)2 (aq)Red liquid and clear liquidPinkish-purple substance. Gas bubbles formmagnesium (s)Mg (s)hydrochloric acid (aq)HCl (aq)Silver, lustrous metal and transparent liquidGas bubbles form on magnesiumsodium bromide (aq)NaBr (aq)chlorine (aq)Cl2 (aq)Transparent liquidsTransparent liquidaluminum (s)Al (s)copper (II) chloride (aq)CuCl2 (aq)Lustrous rock and blue liquidGas bubbles form on aluminumAspect 2 Processing DataChemical Reactants and Products Equations BalancedH2SO4(aq) + Ba(OH)2(aq) BaSO4(s) + 2HO2(l)(Double reserve Reaction)Mg(OH)2 (s) + 2 HCl (aq) MgCl2 (s) + 2H2O (l)(Neutralization Reaction)NaC2H3O2 (aq) + HCl (aq) HC2H3O2 (aq) + NaCl (aq) (Double heterotaxy Reaction)Ca (s) + 2HOH (l) Ca(OH)2 (aq) + H2(g)( hotsh ot Replacement Reaction)CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s)(Single Replacement Reaction)CoCl2 (aq) + 2NaOH (aq) 2 NaCl (aq) + Co(OH)2 (aq)(Double Replacement Reaction)Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (s)(Single Replacement Reaction)Cl2 (aq) + 2NaBr (aq) 2NaCl (aq) + Br2 (l) (Single Replacement Reaction)2Al (s) + 3CuCl2 (aq) 2AlCl3 (aq) + 3Cu (s) (Single Replacement Reaction)Aspect 3 Reactants, Products, and Types of Reaction ChartReactant 1Reactant 2ProductType of ReactionH2SO4(aq)Ba(OH)2(aq)BaSO4(s) + HO2(l)Double ReplacementMg(OH)2 (s)HCl (aq)MgCl2 (s) + H2O (l)Neutralization ReactionNaC2H3O2 (aq)HCl (aq)HC2H3O2 (aq) + NaCl (aq)Double ReplacementCa (s)HOH (l)Ca(OH)2 (aq) + H2(g)Single ReplacementCuSO4 (aq)Zn (s)ZnSO4 (aq) + Cu (s)Single ReplacementCoCl2 (aq)NaOH (aqNaCl (aq) + Co(OH)2 (aq)Double ReplacementMg (s)HCl (aq)MgCl2 (aq) + H2 (s)Single ReplacementCl2 (aq)NaBr (aq)2NaCl (aq) + Br2 (l)Single ReplacementAl (s)CuCl2 (aq)AlCl3 (aq) + Cu (s)Single ReplacementConclusi on and Evaluation (CE)Aspect 1 Conclusion In this experiment we discovered three types of chemical reactions, Single and Double Replacement reactions, along with Neutralization Reaction. Referring to Data in Aspect 2 3 of Data Collection and Processing, we can identify there were 5 single replacement reactions, and 4 double replacement reactions (one of which was a neutralization reaction). The reactions involving an member and a compound were all single replacement reactions, and the reaction involving two compounds were double replacements (which included a neutralization reaction).Aspect 2 Evaluate the Procedure A problem with this procedure is that it doesnt explore all types of chemical reactions. Also, try as one may, it is sometimes difficult to get the residue of a substance off the spot plate. This tampers with results.Aspect 3 Improving Experimental Design A few more(prenominal) reactions should be added where simple composition and decomposition are shown. Also, using the Bunsen burner, a reaction should be added where hydrocarbon combustion is shown.Disposable spot plates should be used, to ensure that residue left by previous reactants and reactions, do not tamper with results.