In the titration of NaOH and HCl, which of the following indicator will be used? View Solution Q2 Given two mixtures: (A) NaOH and Na2CO3 and (B) NaHCO3 and Na2CO3.100 mL of mixture (A) required a mL and b mL of 1 M HCl in separate titration using phenolphthalein and methyl oran...
Titration of HCl with NaOH should use as the acid-base indicator. A. methyl orange B. phenolphthalein C. methyl red D. all of the above 点击查看答案进入小程序搜题 你可能喜欢 朱熹在《训学斋规》中指出:读书有“三到”,即( )。 A、手到 B、心到 C、意到 D、眼到 E、口到 点击查看...
When phenolphthalein is used as the indicator in a titration of an HCl solution with a solution ofNaOH, the indicator undergoes a colour change from colourless to poink at the end point of the tiration. This colour change occurs abruptly because ...
What would you observe if you placed a piece of copper in a 1.0 M HCl solution? What chemical test would you use to distinguish between isopropyl alcohol and t-butyl alcohol? What you would observe? Define titration. What test could be performed to distinguish the following pair of compounds...
The use of nitroferroin as indicator avoids the need for high temperature, catalyst, and removal of sulphate ions during the titration and permits a satisfactory titration in HCl , HClO 4 , and HNO 3 media.doi:10.1007/BF00468407K. Bhaskara Rao...
A basic salt is formed between a strong base and a weak acid ? The higher pH is due to the hydrolysis of the conjugate base of the weak acid used during the neutralization reaction. ? For example, lets consider the reaction CH3COOH + NaOH ? NaCH3COO + H2O ? NaCH3COO will break up...
1. Dissolution and Precipitation: The sample is dissolved in HCl and H2O2, and potassium nitrate is added to precipitate silicon. 2. Suction Filtration: The precipitate is filtered and washed. 3. Titration: The sample is titrated with NaOH using BTB as the indicator until the blue color is ...
purified iYTnC and iYTnC2 in the Ca2+-saturated states were measured in buffer 10 mM Tris-HCl, 100 mM KCl, 10 mM CaCl2, pH 7.2, by alkaline denaturation with 1 M NaOH and using extinction coefficients for GFP-like chromophores equal to 44,000 M− 1 cm− 1 in 1 M NaOH [...
Indicators are often used in titration reactions to signal that the equivalence point pH is reached. The indicators added are weak acids or bases that exhibit different colors based on the pH. An example of an indicator is Phenolphthalein.
The overall equation for the reaction between sodium carbonate solution and dilute hydrochloric acid is Na2CO3(aq.)+2HCl(aq.)→NaCl(aq)+CO2(g)H2O(l) If you had the two solutions of the same concentration, you would have to use double volume of HCl to reach the equivalence point. ...