What are the properties of D-sorbitol in contact solution?
103739
pcp also knowin as angel dust
898113
The solute CaBr2 contains 3 ions, which are all separated when it dissolves in water.\nGlucose, although it is a big molecule, is only one particle. Therefore CaBr2 provides three times the lowering of freezing point that glucose does\nBoth substances are freely soluble because the particles have a good attraction to water. But the solution of CaBr2 will not freeze at -5C because it has 6.00M of ions in it (3 x 2.0M).
225634
None. They are two different compounds.\n\nIt looks like you want to compare a specific property of the alcohols. Please specify!
245036
A property of soluble materials is their "heat of solution", which can be positive or negative. Adding calcium chloride or sulfuric acid to water, for example, heats the solution a lot. Ammonium chloride cools the resulting solution. See the references below for a fuller explanation.
133287
Will this help?\n\n============================================================\n1: J Microencapsul. 1991 Apr-Jun;8(2):247-52. Related Articles, Links  \n\n\nStudy of abietic acid glycerol derivatives as microencapsulating materials.\n\nPuranik PK, Dorle AK.\n\nDepartment of Pharmaceutical Sciences, Nagpur University Campus, India.\n\nAbietic acid (85 per cent pure) was extracted from rosin N Grade and further standardized. Abietic acid derivatives were prepared by heating abietic acid with glycerol and intermediate reaction products with different acid values were collected. Salicylic acid granules were encapsulated using a 10 per cent solution of abietic acid and its derivatives by standard spray pan technique. The coated microcapsules were evaluated for moisture absorption, dissolution and flow properties. The result showed that abietic acid glycerol derivatives, AaG-54 and AaG-20 had better moisture protection properties. Dissolution studies indicate that these derivatives could be used for delayed release of drugs.\n\nPMID: 1765905 [PubMed - indexed for MEDLINE] \n============================================================
582636
Try dissolving sugar in water then freezing it this is a solid solution. The solute is the sugar and the water is the solvent
672199
Ingredients from MSDS/Label  \nChemical CAS No / Unique ID Percent \nFragrance(s)/perfume(s) 000000-00-1  \nColor protection/processing agent 000000-27-8  \nSodium sulfate anhydrous 015124-09-1  \nCleaning agent(s) 999999-47-1  \nFabric brightening agent 999999-59-7  \nSodium silicates (unspecified) 999999-62-2  \nSoil suspending agent(s) 999999-62-3  \nSudsing agent 999999-62-4  \nWater softeners (complex sodium phosphates/sodium carbonate) 999999-80-2
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Osmosis in potatoes. \nPut pieces of potato in different conc. of glucose solution and look at the changes.
583132
It shouldn't have anything significant.  Propylene glycol (1,2-propanediol) has no pi-bonds, so there wouldn't be any UV-absorbing electron structure.\n\nHO-CH2-CHOH-CH3
47201
2,6-DIDEOXY-BETA-D-GALACTOSE (DDL)
896029
in sphingolipid you can have glucose or some oligosacarides
388724
The following information (Health Effects, Handling/Disposal, and Ingredients) is taken from the product label and/or the Material Safety Data Sheet (MSDS) prepared by the manufacturer. The National Library of Medicine does not evaluate information from the product label or the Material Safety Data Sheet. \nWarning from \nProduct Label: Warnings: Caution: Eye irritant. Contains Isopropanol and Ammonium Hydroxide. Avoid contact with eyes. Wash hands after handling. Do not use with other household cleaners. First Aid: In case of contact with eyes, immediately flush with water for 20 minutes. Get medical attention if irritation persists. Keep out of reach of children \nAcute Health Effects: Route(s) of Entry: Skin contact.\nEffects of Acute Exposure:\nEye: None known.\nSkin: None known.\nInhalation: None known.\nIngestion: None known.\n\nMedical Conditions Generally recognized As being aggravated by exposure:\nNone Known.\n \nChronic Health Effects: No information given. \nCarcinogenicity: No information given. \nFirst Aid: First Aid:\nEye Contact: Rinse with plenty of water.\nSkin Contact: Wash contaminated area with water and soap.\nInhalation: No special requirements.\nIngestion: Get medical attention.\n \nHealth Rating: 0 \nFlammability Rating: 1 \nReactivity Rating: 0 \nHMIS Rating Scale: 0 = Minimal; 1 = Slight; 2 = Moderate; 3 = Serious; 4 = Severe; \nN = No information provided by manufacturer; * = Chronic Health Hazard \nMSDS Date: 2003-10-29  \n \n \n \n \n   \nHandling/Disposal  \nHandling: Handling and Storage:\nPrecautionary Information\nKEEP OUT OF REACH OF CHILDREN. Use as directed.\n\nOther Handling and Storage Conditions\nKeep container well closed when not in use. Observe good personal hygiene practices.\n \nDisposal: Waste Disposal Information: No special requirements. \n \n \n \n \n   \nIngredients from MSDS/Label  \nChemical CAS No / Unique ID Percent \nIsopropanol 000067-63-0 1-5 \nWater 007732-18-5 50-70 \nInert ingredients (unspecified) 999999-00-2 30-45
712818
more soluble in what solution?
929369
I sure hope you have more information than you're giving us.  Typically profs will narrow the choices to one example of each major class of organic compound.  If you have the whole universe of canidates to choose from, you will need a lot more than these simple test.\n\nTLC:  In one of your textbooks or handouts, you should have a short list of organic candidates vs their Rfs.  Assuming you are using silica gel or alumina plates, ethyl acetate is about twice a strong a chromatographic mobile phase as dichloromethane (DCM) (see linked pdf, p. 15).  The fact that your unknown moved at all in ethyl acetate but hardly at all with DCM lets you know that your compound is fairly polar.  This is not an alkane or a fatty acid/ester.\n\nSolubility:  Not soluble in water?  It's not a saccharide, short-chain acid, alcohol or phenol.  Not soluble in base means it's definitely not a carboxylic acid or a phenol.  Soluble in acetone means it's not a fat or long-chain fatty acid.\n\nSo, what are we left with?  Ethers, ketones, esters and aldehydes.  I suggest you look in the chromatographic tables you have for one of these compounds that has the same Rf values and melting point you've quoted us.\n\nGood luck.
831848
sodica=sodium salt\nalginico=alginic acid\n\nalginico acid is a viscous gum that is abundant in the cell walls of brown algae.\n \nHope this helps. good luck!!!
741504
Vapor Pressure of Solutions\n\nA. \n\nAmount of the sugar present = 10.0g/ (342) = 0.0292397661 mol\nAmount of water present = 200g/ (18) = 11.11111111 mol\nThus, X(H2O), which signifies the fraction of water present,\n= 11.11111111/ (11.11111111 + 0.0292397661)\n= 0.9973753281\nAt 25 deg Celsius,\nVapor Pressure of Water is then = 0.9973753281 x 23.8\n                                                      = 23.73753281 Torr.\n\n\nB.\n\nAmount of Calcium Chloride = 49.4g/ (40.1) = 1.2319202 mol\nAmount of water = 150g/ (18) = 8.333333333 mol\nThus, X(H2O), which signifies the fraction of water present,\n= 8.333333333/ (8.333333333 + 1.2319202 )\n= 0.8712088294\nVapor Pressure of Water is then = 0.8712088294 x 23.8\n                                                      = 20.73477014 Torr.\n\n\nFREEZING POINT DEPRESSION/BOILING POINT ELEVATION OF SOLUTIONS\n\nA - NOTE: T(f) signifies T with the small f at its bottom right. Similarly, b(f) is an 'f' with a small f at its bottom right.\n\ndT(f) = change in freezing point\n\nChange in dT(f) = 5.48 - 3.77 = 1.71\nTherefore, from {c}\nb(f), which signifies the molality,\n= 1.71/ 5.12 = 0.333984375\n\nSince molality = (Amount of solute added)/ (mass of solvent/ kg),\n\nAmount of solute added = [500 x 10^(-3)]x(0.333984375)\n                                        = 0.1669921875mol\n\nThus, Mr of the unknown compound is 20.0/ (0.1669921875)\n= 119.7660819\n\nB\n\nChange in T(b) = (0.51) x {54.6/ [0.997x400x10^(-3)]}\n                         = 69.82447342\nsince  dT(f) = K x b(f) and\nmolality = (Amount of solute added)/ (mass of solvent/ kg).\n\nI am afraid I do not know how to proceed from here for I am not sure of the method to find the normal boiling point of a solution.
793668
South Carolinan Radioactive Ulcer Bicarbonate Solution