Top new questions this week:
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Disclaimer: I am not a chemist by any means, and I only have knowledge limited to what I learned in my university's Chemistry III course. Basic understanding of everything up to valence electron ...
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Placed in equivalent freezers, would a liter of water or a liter of lava turn from liquid to solid first? (question from a 6 year old)
Based on this page in a “Blaze” book, my six year old asked “...
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According to PubChem, diethylmethylamine has a remarkably low melting point of $-196.0\ \mathrm{^\circ C}$. This is substantially lower than the melting points of dimethylethylamine ($-140.0\ \mathrm{^...
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So my answer was 3 and it was wrong, And i really would like to know what is the correct answer, after giving it some thought, I think the answer is 4 because indeed it is easier to control the system ...
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I am trying to find the original textbook image that is the inspiration for many schematic figures showing tertiary interactions (hydrogen bonding, ionic interactions, hydrophobic interactions, ...
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I stupidly applied spray sunscreen on my children inside our white, acrylic bathtub and the floor ended up with a white, very sticky residue that rubs off on things, but will not wash away with ...
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Is it possible for a molecule to absorb and emit at the same wavelength? What is the reason behind it?
I’m working on charged Tin porphyrins and got the excitation and emission (fluorescence) ...
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Greatest hits from previous weeks:
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I used my water kettle (metal ones, not the plastic ones) to boil my water. Usually, if I did not consume all the water in the kettle and the water was cold, I usually topup extra water to the kettle ...
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So I wanted to know what the reaction between sodium hydroxide and carbon dioxide can be, and upon research I got 2 answers. The first one is
$$\ce{CO2 + NaOH(aq) -> NaHCO3(aq)}$$
and the second ...
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If one considers boiling points (in °C) of primary alcohols, one finds the following:
methanol: 65
ethanol: 79
1-propanol: 97
1-butanol: 117
1-pentanol: 138
This trend is due to Van der Waals forces ...
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In the van der Waal's formula for real gases $\left( p+\frac{a}{V^2}\right)(V-b)=nRT$, what are the dimensions of $a$ and $b$?
I learnt that $a$ is related to the average force of attraction between ...
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Since fluorine has its valence electrons in the n=2 energy level, and since chlorine has its valence electrons in the n=3 energy level, one would initially expect that an electron rushing towards ...
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The case of polar solvents is clear to me - we get an attraction between opposite charges. However, how do non-polar substances dissolve in non-polar solvents? How could it be explained on a molecular ...
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Part A) Given a barometric pressure of $\pu{764.0 mmHg}$, calculate the pressure of gas sample (a) as indicated by the manometer.
Part B)
Given a barometric pressure of $\pu{764.0 mmHg}$, calculate ...
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Can you answer these questions?
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The title says it all really.
I thought it would be acetylacetonatobipyridinecopper(II) tetraphenylborate. Is this correct? I feel as though it looks a bit clumsy and wasn’t sure if I was supposed to ...
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I am to graph the Energy potential curve (in $\text{cm}^{-1}$) for a molecule (HI),in the fundamental electronic state, according to the Morse oscillator. I believe I am to use this equation
$$E(R)=...
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Since the overlap increases with directional properties of orbital,
$$\ce{p - p > s - s > s - p}$$
However it is also observed that the bond strength of
$$\ce{H-F &...
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