Top new questions this week:
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I found this glassware in a phytochemistry lab abandoned in the 1990ies. The piece itself was shelved in the storage room, thus probably already obsolete back then. The device, entirely glass, is a …
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I put 1.000g of glucose powder into a 1 L volumetric flask and filled the flask to the 1L line with room temperature distilled water. I then inverted several times for 10 minutes to mix until there …
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Natural uranium has a half life of 4.5 billion years. Representing with the expression $m(0.5)^{\frac{x}{(4.5\times10^9 \times 364)}}$, where $x$ is in days and $m$ is the initial mass of uranium. In …
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I couldn’t decide whether to ask this to Chemistry, Physics or Statistics stack exchange. Hopefully I made the right choice. According to this Wikipedia page, while the speed of particles in an ideal …
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Meanwhile, the hypervalency of Xe in XeF2 is explained by the 3c4e bond, where the p orbitals of the 3 atoms overlap to form a delocalized system of 3 MO’s in which 4 electrons (two from the Xe p …
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When we draw the molecular orbital diagram for molecules For those that have less than or equal to 14 electrons we use the order “σ1s σ∗1s σ2s σ∗2s π2px,π2py σ2pz π∗2px,π∗2py σ∗2pz” and for …
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I want to calculate the concentrations of all components in the outlet stream of the reaction: C$_2$H$_6$ -> C$_2$H$_4$ + H$_2$ (A -> B + C) I have a tank reactor (isothermic and isobar): V= $…
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Greatest hits from previous weeks:
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Let’s take the $\ce{KOH}$ molecule into account. I know it is a base from literature, but how would one go about determining if a molecule is acidic or basic simply based on the structure of the …
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I am doing several questions involving judgment on the planarity of a compound. Which of the following is not a planar molecule? $\ce{H_2C=C=CH_2}$ $\ce{H_2C=C=C=CH_2}$ $\ce{H_2C=C=O}$ …
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What’s the difference between $\alpha$-D-glucose and $\beta$-D-glucose? Are they isomers? Or do they differ in their elemental composition?
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I sort of know how carbonated beverages are carbonated: a lot of $\ce{CO2}$ gets pushed into the liquid, and the container is sealed. There are at least two things I don’t know. First, how much carbon …
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I’m learning how to apply the VSEPR theory to Lewis structures and in my homework, I’m being asked to provide the hybridization of the central atom in each Lewis structure I’ve drawn. I’ve drawn out …
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In a galvanic (voltaic) cell, the anode is considered negative and the cathode is considered positive. This seems reasonable as the anode is the source of electrons and cathode is where the electrons …
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Sodium is more electropositive than hydrogen although they are in the same group. Why is the electronegative value of hydrogen greater than sodium (metal)?
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Can you answer these questions?
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I am in the midst of a world building project and am wondering about green sand from copper oxide/patina material. The material could either be washed into the water from a nearby land deposit or be …
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I’m trying to implement the Hartree-Fock algorithm on a water molecule using the STO-3G basis. This far I have only computed the overlap integrals with the Obara-Saika formulas but I’m running into …
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I know that Both solutions are a shade of purple due to the lack of absorbances in the red and blue regions, however am I correct in thinking that the peak slightly to the right of the 2 in this …
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