Persisting in “High good quality, Prompt Delivery, Aggressive Price”, yɛde bere tenten biakoyɛ asi hɔ ne adetɔfo a wofi amannɔne ne ɔman no mu biara na yɛanya foforo ne kan clients’ high comments for Acetic acid food additives, Yɛde anigye ma pals a wofi asetra mu gyinabea nyinaa akwaaba sɛ wɔbɛbɔ wɔn ho wɔn ho biakoyɛ na yɛanya ɔkyena a ɛda nsow kɛse na ɛyɛ fɛ kɛse.
Persisting in “High good quality, Prompt Delivery, Aggressive Price”, yɛde bere tenten ayɛ biakoyɛ ne adetɔfo a wofi amannɔne biara ne ɔman no mu na yɛanya foforo ne kan clients’ high comments for , Yɛhwɛ yɛn anim, yɛbɛkɔ so ne mmere no akɔ so, akɔ so ayɛ nneɛma foforo. Yɛn nhwehwɛmu kuw a ɛyɛ den, nneɛma a wɔyɛ a ɛkɔ akyiri, nyansahu sohwɛ ne nnwuma a ɛkorɔn, yɛde nneɛma a ɛkorɔn bɛma yɛn adetɔfo wɔ wiase nyinaa. Yɛfi komam to nsa frɛ wo sɛ monyɛ yɛn adwumayɛfo mfɛfo na yɛanya mfaso ama yɛn nyinaa.














Acetic acid aduan a wɔde ka ho Phenolphthalein kyerɛwtohɔ aduru
Fa phenolphthalein g 1 gu ethanol 100 mL mu.
Acetic acid aduan a wɔde ka ho Ɔkwan a wɔfa so yɛ no:
Kari nhwɛsode no 2.5 g pɛpɛɛpɛ ma ɛyɛ 0.0001 g gu ahina a ɛte sɛ ahina a wɔabɔ no ano a nsu a carbon dioxide nnim 50 mL wom mu. Fa phenolphthalein indicator solution 3 gu mu na fa sodium hydroxide titrant (1 mol/L) titrate kosi sɛ kɔla a ɛyɛ pink a ɛyɛ mmerɛw bɛda adi. Sodium hydroxide titrant 1 mL biara (1 mol/L) ne C2H4O2 mg 60.05 yɛ pɛ.Acetic acid aduan a wɔde ka ho.