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Acid concentration in daily substances (Vinegar (Acetic acid (NaOH (or…
Acid concentration in daily substances
Vinegar
Acetic acid
NaOH (or other bases)
phenolphthalein/methyl orange (indicator)
Alcohols
other acids that potentially exist in vinegar
esters
toilet detergent
HCl
Sodium carbonate
phenolphthalein (indiator)
HClO
may react with sodium carbonate
Orange juice
Citric acid
NaOH
Phenolphthalein
Uncertainties
Temperature
may affect pH level
may increase due to neutral reactions
may affect the ionisation of H cations in solutions
unexpected reactions
reactions between bases and unexpected acids
reactions between the indicator and vinegar
changes of pH value due to hydrolysation
purity of NaOH powder that will be used to make standard solution
Indicator
phenolphthalein
methyl orange
litmus
soda
Carbonic acid
sodium hydroxide
phenolphthalein/methyl orange
carbon dioxide
react with base