Prepare salt by titration
Suppose we have to prepare NaCl,
HCl(aq)+NaOH(aq) --> NaCl(aq)+H2O(l)
Use methyl orange as indicator for titration.
咁methyl orange will turn orange in a acidic medium. 咁prepare 出黎個salt咪混入左excess HCl (aq). 最後個solution其實咪有 NaCl(aq), H2O(l), HCl(aq). 結果prepare出黎個salt係impure囉?
我不知自己concept上有冇錯, 但希望高人可幫手解答