Determining weight-percent methanol in water from specific …
2014年10月3日 · Calculate using the specific gravity of pure methanol and pure water at a given temperature, then calculate the specific gravity of the mixture using an adjustment for the $\Delta V_{mix}$. This approach seems to work fairly well, but I could only find data for the change in volume due to mixing for 25 °C ( page 12 of this PDF from Methanex ).
aqueous solution - Diluting methanol in water: is it exothermic ...
2018年10月9日 · When the water and methanol are mixed together, some of the existing hydrogen bonding (water-water or methanol-methanol) is disturbed and now there is hydrogen bonding between water and methanol. This new hydrogen bonding pair (water-methanol) releases energy when it forms as it is more favorable than maintaining only water-water and methanol ...
Safely mixing methanol and chloroform - Chemistry Stack Exchange
2019年5月21日 · Mixing chloroform and methanol presents no hazards, except for those presented by handling chloroform by itself and methanol by itself. That is, mixing these reagents does not create any dangerous reactions. However, chloroform is a toxin and methanol is both a toxin and is highly flammable. – Curt F. CommentedMay 21, 2019 at 23:46.
acid base - Is methanol really more acidic than water? - Chemistry ...
2016年8月26日 · The Wikipedia page [3] [3] for methanol quotes its acidity constant to be 15.5 15.5. So it would seem, water is more acidic than methanol. But an answer to the question mentioned above gives a good reasoning for why methanol is more acidic than water (it doesn't deal with the pKa of water, though). Also, the answer mentions that water would be ...
What is the order of the following compounds based on polarity?
2015年6月13日 · The concept of solvent polarity is commonly used to describe solvent effects. For example, the Glossary of Terms Used in Physical Organic Chemistry (IUPAC Recommendations 1994) uses the following general definition (which was originally proposed by Christian Reichardt) of the term polarity:
organic chemistry - Reaction of NaOH with methanol and ethanol ...
2016年9月17日 · It is not just the case with ethanol, rather all alkyl alcohols $(\ce{RCH_2OH})$ except for methanol does not reat with $\ce{NaOH}$. If you come across a question asking that which of the given compounds dissolves in $\ce{NaOH}$, and if methanol $(\ce{CH_3OH})$ is one of the options then yes it will be your answer.
aqueous solution - Will water allow salts to be dissolved in …
2017年6月5日 · Maybe the liquid phase will remain mixed, and just dissolve some salt (more than would dissolve in methanol, but less than would in pure water). Or maybe it will separate into water-rich and alcohol-rich layers, with nearly all dissolved salt staying in the former. This may be considered an extreme case of salting out.
Why does Alcohol-Dehydrogenase prefer ethanol over methanol?
2023年6月6日 · Yet, it may be too large to bind the hydrogen of methanol because the hydrogen would be too small for necessary tight binding. References: Robert R. Crichton, "Chapter 12: Zinc: Lewis Acid and Gene Regulator," In Biological Inorganic Chemistry: A New Introduction to Molecular Structure and Function ; Second Edition, Elsevier B.V.: Amsterdam ...
organic chemistry - Speed at which methanol dissolve in water ...
2017年4月3日 · majededdine. 1 1. Methanol is infinitely soluble in water and vice versa. If you mean how long does it take for the solution to be relatively uniform, it will be more than several seconds. You should stir. – Zhe. Apr 3, 2017 at 14:24.
physical chemistry - Why does ethanol and water mixture show …
2017年5月15日 · Here, water forms hydrogen bonds of greater strength and magnitude than does methanol, and one expects that a water-methanol mixture will therefore possess weaker intermolecular interactions than those in a solution of pure water.