
What is the chemical formula of KIT-6? - Chemistry Stack Exchange
2017年7月18日 · KIT-6 is a mesoporous silica, the chemical formula is the same for all silica which is $\ce{(SiO2)_n}$. The tridimensional structure though is usually represented as Share
How to calculate number of all atoms in rings in a molecule?
2023年2月9日 · Efficient ring perception for the Chemistry Development Kit. Journal of Cheminformatics, 6(1), 1–12 ...
solutions - Why should hydrogen peroxide be added to sulfuric …
2021年8月8日 · 6 $\begingroup$ @Alchimista As 30% H2O2 still contains 70% of water, there is still similarity. I suppose it must have something to do with the overall H2O2 concentration and …
Normal phase vs reverse phase HPLC - Chemistry Stack Exchange
2017年9月24日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
safety - Acid Accident Treatment - Chemistry Stack Exchange
edited Nov 6, 2017 at 23:58. Tomáš Zato. 2,538 4 4 gold badges 40 40 silver badges 57 57 bronze badges.
How to determine the pH of a mixture of two weak acids?
2014年4月26日 · Thus, when applied to book-examples, which $\text{p}K_\ce{a}$ values from 3 to 6, and the concentrations from $1.0$ to $\pu{1.0E-4 mol L-1}$, the assumptions are valid and …
organic chemistry - Free software to draw Newman projections ...
2017年8月1日 · You can use GChemPaint, which is available on the repositories of many popular distributions.Among its many components for drawing structures, it has a specific tool for …
everyday chemistry - Ethanol discolored yellow when stored with a ...
2017年9月5日 · I stored some Klean-Strip denatured alcohol in a test tube and capped it with a rubber stopper. I did this in preparation for a chemistry demonstration. When I opened my kit a …
organic chemistry - Mechanism of DPD (N,N-diethyl-p …
2019年6月15日 · DPD (N,N-diethyl-p-phenylenediamine) is used in free chlorine colorimetric analysis since it reacts with Hypochlorous acid and Hypochlorite ions acquiring a pinkish color …
acid base - Acceptable levels of HCl? - Chemistry Stack Exchange
2016年2月7日 · It is different if you consider fish living in such water. pH from several ppm would not drop below 5, which is close to rainwater, but significantly lower than normal river or sea …