chem math problems? - XP Math - Forums

 XP Math - Forums chem math problems?
 User Name Remember Me? Password
 Register Arcade Members List Mark Forums Read

 Thread Tools Display Modes
 08-05-2007 #1 afrye2275 Guest   Posts: n/a chem math problems? 1) the weak electrolyte NH3 (g) does not obey Henrey's law. why? 02(g) obeys Henreys law in water but not in blood (an aqueous solution) why?2) Detergent molecules can stabilize the emulsion of oil in water as well as remove dirl from soiled clothes. A typical detergent is sodium dodexylsulfate, or sds, and it has a formulal of CH3(CH2)10CH2SO4 NA. In aqueous solution sds suspends oil or dirt by forming small aggregates of detergent anions called micelles. Propose a structure for micelles.3) An queous antifreeze solution is 40% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05%g/cm^3. Calculate the molality, molarity and mole fraction of the ethylene glycol.
 08-05-2007 #2 Alicia T Guest   Posts: n/a well this might be hard but the answer is 30%heLiam 60%ethleneglycol and 10%by mass
 08-05-2007 #3 scott k Guest   Posts: n/a I can answer #2 for you considering I did my research on it. A micelle would be a spherical structure of docecyl sulfate chains. Dodecyl chain >> C-C-C-C-C-C-C-C-C-C-C-C-SO4 Excluding hydrogens. Have you ever seen a froosh ball, its one of those rubber toys with things sticking out of it. A micelle would appear the same way. Imagine the center and the carbon ends of the chain will all point toward the middle making the middle of the sphere where the charge will be positive and the sulfates will be pointed out from the center of the sphere.If you want email me at chemphreak_2000@yahoo.com and I can send you a picture of one.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Welcome     XP Math News     Off-Topic Discussion Mathematics     XP Math Games Worksheets     Homework Help     Problems Library     Math Challenges

All times are GMT -4. The time now is 04:16 PM.

 Contact Us - XP Math - Forums - Archive - Privacy Statement - Top