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Background DMSO is a skin penetration enhancer. Sodium azide (NaN₃) is toxic. When mixed, DMSO can carry azide through skin without chemical change. I want to understand the hazards. Questions ...
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I am removing high phosphorous (5~10%) nickel electroless plating from alumina circuit boards using 125 ml concentrated nitric acid to 250 ml water and 60 ml 35% hydrogen peroxide, generally following ...
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I am working on an assignment for university where I have to design a process to produce a certain product. The stream that initially enters my reactor actually is a mixture of three streams: a fresh ...
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I have made a effort to recalculate the wavefunction of the electrons of the He atom. Schrödinger’s time-independent equation in natural units for the He atom is $$\left(-\frac 12\vec\nabla^2_{r_1} - \...
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I was recently studying chemical bonding for the first time where I was introduced to molecular geometry and molecular shape. What is the exact difference between these to terms used in VSEPR? For ...
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I found data on the boiling point of the isomers of heptane and hexane. For example I am interested how to determinate branching of 2-methilhexane and 3-methilhexane, which of them would and why would ...
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Soft drinks are typically sold in translucent plastic bottles - whether smaller 0.5L, larger 1.5L or 2.0L, or other sizes. In this question, let's focus on bottles made from PET (poly(ethylene ...
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I recently took a test for a lab class I have and one of the questions was: In the Classical Solar System model, what was the atom like? a: there is a nucleus where the proton resides b: There are ...
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I am working on a project for a university assignment, and part of this requires me to model a flash tank in Python. I am wondering if it is a reasonable assumption that we can fix both the ...
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There is a problem sequence in this year's IChO preparatory, based on the synthesis of ribonucleic acids in the prebiotic earth suggested by Powner et al.: (Adapted from Nature) Apparently the ...
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I have an interesting question for you all! I'm interested in your personal opinion of using Ethyl Lactate as a fire breathing fluid. Most fire breathers will use ultra pure lamp oil, which is not ...
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This may be for my Australians out there. There is a popular drink in Australia known as Solo. It is a lemonade drink that is lightly carbonated. I am trying to recreate it with my limited chemistry ...
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In method validation and linearity studies, a y-intercept of zero is the ideal. However, in practice, some deviation is expected. Beyond the qualitative preference for a 'small' intercept, are there ...
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This was originally from a paper regarding prebiotic chemistry by Powner and Suterland (doi:10.1098/rstb.2011.0134, complete reference below the question): I am pretty interested in the mechanism of ...
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The procedure in the textbook is like below: Heat the test tubes holding starch solution and amylase solution to the desired temperature. Mix them. Every minute transfer a drop of the mixture to a ...
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