Acetone/Chloroform Liquid-Vapor Phase Diagram Abstract: Liquid-vapor phase of acetone/chloroform was studied through distilling a series of mixtures with different mole fraction. When the mixtures were boiling‚ their vapor was condensed through a water column and collected in a receiving container. Refractive index was collected for starting mixture‚ distillate and residue for each sample. A boiling temperature versus acetone’s mole fraction was constructed to show the liquid-vapor phase diagram
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and Baby oil mixture as Insect (mosquito) Repellant Abstract This study determined the effectiveness of lemon grass and baby oil mixture as insect (mosquito) repellant. The effectiveness of lemon grass and baby oil mixture as insect (mosquito) repellant was tested by a It was hypothesized that lemon grass and baby oil mixture was effective like insect repellant. The result of our project suggests that we can make repellant out of lemon grass and baby oil mixture that is effective
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substances naphthalene‚ biphenyl and a mixture of C. Data/Observation Sample | Melting Point Range (°C) | | Accurate trialStart Done | Naphthalene | 81 | 85 | Biphenyl | 71 | 73 | Mixture C | 42 | 56 | Questions: 1. The effect of the impurity on the mixture caused the melting point of the mixture to be lowered. 2. The reason why the melting point of a binary mixture is lowered‚ is due to the fact that the mixture of the two components has caused
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there was some white in the middle. | B.|HCl + BTB|A3|The mixture turned yellow instantly. Under white paper the mixture was more of mustard yellow and under black paper it was less of a bright yellow. | C.|NH3 + BTB|A4|The mixture is a lighter royal blue under white paper and a darker royal blue under black paper. The mustard yellow would be an acidic indicator and the royal blue a basic indicator. | D.|HCl + blue dye|A5|The mixture also turned green instantly. Under white paper it is a nice
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identified. If an unknown material is a mixture‚ an investigator may want to know one or two things about it: What are the ingredients of the mixture? Is the mixture found at the scene the same as a known mixture? A mixture is a collection of two or more pure substances that are physically close together. You are familiar with a variety of mixtures. For example‚ a soft drink is a mixture of water‚ sugar‚ artificial colors‚ caffeine‚ and flavors. Other mixtures include foods‚
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following mixture by double indicator method: 1. NaOH(aq) and Na2CO3(aq) 2. NaHCO3(aq) and Na2CO3(aq) Introduction Consider a mixture of NaOH(aq) and Na2CO3(aq). Reaction between HCl(aq) and Na2CO3(aq) takes place in two stages: HCl(aq) + Na2CO3(aq) ⎯→ NaHCO3(aq) + H2O(l) …………………. (1) HCl(aq) + NaHCO3(aq) ⎯→ NaCl(aq) + CO2(g) + H2O(l) …………. (2) While that between HCl(aq) and NaOH(aq) completes in only one step: HCl(aq) + NaOH(aq) ⎯→ NaCl(aq) + H2O(l) ……………….………. (3) Solution mixture of reaction
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extraction. Extraction is a systematic process of separating mixtures of compounds‚ taking advantage of the affinity differences of compounds to separate them (Padias 128-37). This technique recognizes the principle that “like dissolves in like‚” that is‚ polar solutes dissolve in polar solvents and non-polar solutes dissolve in non-polar solvents. Through extension of this principle‚ one can use extraction to separate compounds of a mixture. There are three different methods of extraction; solid-liquid
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burst and create popcorn. In Part 2‚ “Separating a Solid Mixture”‚ the purpose was to work with supplies in the lab to separate a solid mixture of popcorn‚ sand‚ salt and iron filings into the four separate components to eventually learn the percent composition of the solid mixture. By developing a plan to separate the mixture‚ the group should have ended up with four separate items with weights that added up to the original weight of the mixture. The experimental relevance of Part 2 of the experiment
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possibly‚ is the most effective. In this experiment we were able to calculate limiting reactants from the reaction of CaCl2. 2H2O + K2C2O4.H2O(aq). As a group‚ we obtained our salt mixture of calcium chloride and potassium oxalate‚ and weighed the mixture. We were able to make an aqueous solution from the mixture and distilled water. We boiled and filtered off the solution‚ leaving the precipitate. Once the precipitate was dried overnight‚ it was weighed and the mass was measured. Then we calculated
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Mixing Barium titanate is a white powder that can be mix by barium carbonate and titanium dioxide. The mixture of Barium titanate can be pressed to make the piezoelectric discs. How to mix barium carbonate with titanium dioxide ? First‚ we need to use the chemical reaction formula to calculate the molar ratio of the mixture Baco3 + Tio2 -> Batio3 + Co2 Ba:137.33 Carbon:12 Oxygen:16 Ti:47.9 Total molecular mass barium carbonate = 137.33+12+48=197.33 Total molecular mass
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