2024年2月29日 · (i) Since universal indicator paper turns purple in oven cleaner solution, we can infer that the pH of the oven cleaner solution is around 11-12, as indicated by the purple color …

2024年5月10日 · Double indicator acid-base titration:In the acid-base titration the equivalence point is known with the help of indicator which changes its color at the end point. In the titration …

2023年3月3日 · b, ph of ammonium nitrate or NH4NO3 is 5.43 and will turn into green colour on universal indicator. b, no change because potassium carbonate is basic in nature and has a ph …

2024年6月11日 · To determine the strength (concentration) of ferrous ammonium sulfate (FAS) using potassium dichromate (K₂Cr₂O₇) with an external indicator, typically diphenylamine …

2020年6月1日 · A solution contains na2co3 and NaHCO3 15ml of the solution required 5 mLN/10 of for neutralization using phenolphthalein as an indicator. With methyl orange indicator, 15 mL …

2024年4月4日 · In this indicator, teachers are compared by their average age and work experience measured in years. For the same in 2015, the following distribution of ages (in …

2023年6月13日 · Rajesh was given a substance and asked to identify it. He conducted three tests on the substance and recorded the results below.(P) It releases carbon dioxide, water and a …

2023年9月18日 · Universal indicator is a mixture of dyes that changes color at different pH values. This allows Jared to see a wide range of pH changes, from acidic to basic. Explanation: Jared …

2020年12月4日 · , using eriochrome black-T indicator to reach equivalence point. An equal another amount of hard water sample is boiled for 30 min. After filtration and cooling, the same …

2023年7月19日 · i) The ph of Red colour in the universal indicator is in the range of 0-7 indicating that it is acidic in nature. Thus, it will have more hydrogen ion concentration as …