How many grams of acetic acid are required to prepare a bottle of (3.80 Liters) vigenar which contains 3.0% (mass percent) of acetic acid?A.1.1gB.11gC.0.11gD.1.1kgE.11kg 相关知识点: 试题来源: 解析 好像溶液的密度缺.不过醋溶液只有3.0%质量百分比,密度近似为10^3kg/m3吧.3.8× 10^(...
The invention relates to a process for preparing aryl- and heteroarylacetic acids and derivatives thereof by reaction of aryl or heteroaryl halides with malonic diesters in the presence of a palladium catalyst, of one or more bases and optionally of a phase transfer catalyst. This process enables...
To prepare acetone from acetyl chloride, we can follow a series of chemical reactions. Here is the step-by-step process:Step 1: Hydrolysis of Acetyl Chloride - Reaction: Acetyl chloride (CH3COCl) undergoes hydr
illustrate how to prepare a 1:3 solution of 0.5 hydrochloric acid. Explain why monoalkylated and dialkylated acetic acids can be prepared by malonic ester synthesis, whereas trialkylated acetic acids (R3CCO2H) can't be prepared. 1. What chemical test would you use to distin...
Step 1: Solutions preparation Tank 1: Alginate & Calcium EDTA Mix 2% w/w alginate/water solution and add 0.5M Calcium-EDTA into the mix. Vial 1: Acetic acid solution Prepare Acetic acid solution. Depending on needed gelation time use up to 2% ...
How will you prepare ethylamine from Methyl cyanide View Solution How is acetic acid prepared from Methyl iodide ? View Solution How can the following conversion be brought about: Acetic acid to methyl cyanide ? View Solution How acetic acid is prepared from methyl cyanide? View Solution ...
and stir at a constant temperature of 70°C for 6 hours. The reaction solution was filtered, and the filter cake was washed with acetic acid. After most of the acetic acid was evaporated from the filtrate under reduced pressure, the pH was adjusted to 9 with sodium hydroxide solution and ...
Preparation[1-2] Approach 1 To a solution of acetylene alcohol (15kg, 268mol) in acetonitrile (176kg), ortho-iodobenzenesulfonic acid (1.5kg, 5.3mol), and potassium hydrogen persulfate (132kg, 215mol) were added. The reaction mixture was heated to 70°C and stirred for 5 hours. After ...
How to prepare 2 L of formate buffer of pH = 3.14 (c = 0.05 mol/l) (pk = 3.74)? Buffer systems Buffer systems can resist drastic change in pH. It contains a weak acid and its conjugate base, or vice versa to react with the added base/acid. In solving pH of bu...
How to prepare 1 ml of GTE buffer (50mM glucose,25mM Tris Hcl PH 8.0,10mM EDTA) for the plasmid isolation from the given stock solutions (2Mm Tris-Hcl ,0.5mM EDTA,1M glucose)? You have a 5.5 M solution of Tris buffer pH 7.9. Y...