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Question: What is the practical significance of the shape of conical flask (in US: Erlenmeyer flask)? An Erlenmeyer flask (also known as a conical flask or a titration flask) is a type of laboratory flask, which consists of a flat bottom, a conical body, and a cylindrical neck. The flask is created by the German chemist, Richard August Carl Emil Erlenmeyer (...


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Water and acetone form a polar/non-polar mix and due to strong bonds, the mix is less volatile than would be predicted by the Ideal Version of Rault's Law (which is a linear parametric weighing of the respective partial vapor pressures). This results in what is referred to as a negative deviation (as the curve is beneath the straight line associated with ...


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WRONG SOLUTION: OP clarified that there are two separate solutions, not a mixture of the salts. Assuming: (1) that concentrations can be used instead of activities (bad assumption...) (2) The concentration of the ions $\ce{H2F-}$ and $\ce{F-}$ is so large that the final concentrations will be the same as the initial concentrations. (3) Since HF is a ...


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I've found a answer for my question from this question. The way to compute the conductivity of electrolyte with multiple ion types is given from the work Pawlowicz, Rich, ( 2008), Calculating the conductivity of natural waters, Limnol. Oceanogr. Methods, 6, doi:10.4319/lom.2008.6.489. For general case consider the system, which consist of $N_+$ number of ...


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It is a linear function of temperature (upto 60 C) as per this paper: Solubility of d-Glucose in Water and Ethanol/Water Mixtures, . Chem. Eng. Data 2007, 52, 6, 2166-2170


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I have solubility s given in g/mL. I understand this as mass of solute m divided by volume of solvent V. Your confusion is arising from mixing the concept of solubility and concentration. Unfortunately, both are expressed the same way. You have to see the context. Most authors (like good scientists) try to write their experiment explicitly so that others ...


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Limiting reagent is the reactant used which produces lesser amount of the product as compared to other reactants if other reactants are used in sufficient amounts. Thus it limits the quantity of the product. Now, according to your question, Moles of CH4 = (Mass of CH4 taken)÷(Molecular mass of CH4) = 8/[12+(4×1)] = 8/16 = 0.5 moles of CH4 are ...


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I'm not sure of any conventional ways of electroplating selenium, but you could use a technique such as magnetron sputtering to spray a thin film of selenium onto another metal. Heck, you could even use glass or wood if you wanted to do it that way. And if you're going for thin, this technique can get you some of the thinnest, smoothest layers of metal out ...


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User EdV comments above get to the heart of the matter. To summarize: Your first equation is typically how a chemist would write the reaction. $$\ce{3Pb(NO3)2 (aq) + 2(NH4)3PO4(aq) -> Pb3(PO4)2(s) + 6NH4NO3(aq)}$$ The equation is a "shorthand" explanation. What a chemist reads is: On the left hand side is that that two solutions are mixed together. ...


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