Top new questions this week:
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Is chemical equilibrium and dynamic equilibrium the same thing? Both point to the reversible reactions and no net changes in the concentrations of product and reactant.
Dynamic equilibrium from ...
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How do we know the taste of compounds, and their smell too, when some of them are poisonous. My textbook had that Lead is sweet in taste, but it's poisonous. So, how exactly do we determine their ...
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I want to ask a question about peaks in a UV/VIS spectrum.
My lecturer in our introductory course mentioned the following:
Two molecules may have the same molar extinction coefficient, but if I ...
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Most elements are or have compounds that are gases or have a significant vapor pressure at room temperature. Fluoride is a powerful tool for producing highly oxidized covalent and volatile compounds. ...
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I was given a problem of reaction between (2R,3S)-3,4-dimethylpentan-2-ol and $\ce{POCl3}$ and pyridine. I know that $\ce{POCl3}$ will be attacked with hydroxyl group and the hydrogen on hydroxyl will ...
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I have rarely seen any chromium $(\ce{Cr})$ square planar complexes and I have been told that $\ce{[Cr(CN)4]-}$ is tetrahedral.
So, if the statement is actually correct, are there any other known ...
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I read a paper by Ross and Poirier [1, p. S12] which has the following lines (see section Commonalities of amyloid structure) that describe the structure of protein in a fibril:
The most ...
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Greatest hits from previous weeks:
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I was reading about the p-block elements and found that the inert pair effect is mentioned everywhere in this topic. However, the book does not explain it very well. So, what is the inert pair effect? ...
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What are the definitions of these three things and how are they related? I've tried looking online but there is no concrete answer online for this question.
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In mineralogy class, I was taught that metallic and ionic bonds are weaker than covalent bonds and that's why quartz and diamond have such a high hardness value. However, in organic chemistry class, I ...
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A mixture is made by combining 110 mL of 0.15 M $\ce{HCl}$ and 215 mL of 0.055 M $\ce{HI}$. What is the pH of the solution?
$$\ce{HCl -> H+ + Cl-}$$
$$\ce{HI -> H+ + I-}$$
According to ...
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Why does a dissociation reaction shift to the right with the addition of an inert gas?
(I am still new to the topic of equilibrium, so please explain in simple words.)
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As the title suggest can you explain how DRS can be used for finding band gap of a material. Below is an DRS output result:
From the figure we can see that at about 465 nm the reflectance drops ...
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I want an high-school level answer. What I mean with "valence electrons" is the outermost electrons in that atoms' electronic arrangement? For example, 3 in an atom with an electronic arrangement of ...
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Can you answer these questions?
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I was watching an online lecture on decarboxylation by soda lime and the first few examples were straight forward but after a while a felt that the questions couldn't simply have one effect and maybe ...
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The graphene oxide solution was made from electrolytic exfoliation of graphite electrodes in a 10M NaOH solution. Some graphene powder deposited on the bottom of the recipient but a brownish solution ...
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At eutectic point, there are three phases: solid A, solid B and homogenous liquid phase containing both A and B.
But at consolute point, we are told it has 2 phases: liquid A and liquid B.
Why ...
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