Title: Date: Aim
State theory on how acids and bases affect indicators
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chemistry| State theory on how acids and bases affect indicators
Acids with a PH between 1-4 are considered to be very strong and acids with a PH between 5-6 are considered to be very weak. A base substance is typically a solution that has a PH level higher than 7. The acid which was stronger was solutions A because it had a PH of 1 and the base which was stronger is solution E because it had a PH of 13 Source of error: enough universal indicator wasn’t added which caused the reading to not be accurate Precautions: Solutions should be double checked before labelling it Limitations(sometimes): the universal indicator was not concentrated Conclusion: in concluding the solutions labeled A,D are acids and C and D are bases and B is a neutral substance SBA # 5
Date: Aim: to investigate the effect of acids on normal metal, metal oxide, metal carbonate and hydrogen corbonate. Apparatus and material: Procedure: (Diagram should be here if there is one) Observations/Result: Calculations (Treatment of results): Discussion: Source of error: Precautions: Limitations(sometimes) Conclusion: SBA # 9 Title: acids bases and salts- salt preparation Date: Aim: to prepare a sample of copper(II) sulphate (CuSO4) Apparatus and material: Procedure: (Diagram should be here if there is one) Observations/Result: Calculations (Treatment of results): Discussion: Redox reactions are oxidation-reduction chemical reactions in which the reactants undergo a change in their oxidation states. Oxidation may be defined as the loss of electrons from a substance. Like oxidation reactions, reduction reactions are defined as the gain of electrons. Any substance that gains electrons during a chemical reaction gets oxidized and any substance that loses and electron has been reduced. Source of error: Precautions: Limitations(sometimes) Conclusion: SBA #
Date: Aim: Apparatus and material: Procedure: (Diagram should be here if there is one) Observations/Result: Calculations (Treatment of results): Discussion: Source of error: Precautions: Limitations(sometimes) Conclusion: Download 19.56 Kb. Share with your friends:
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