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equimolar

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  • Love Story Chemistry Edition Hello YouTubers! So this time we decided to use the song Love Story by Taylor Swift, the audio quality is a little bad in this video but unfortunately there is not so much that we can do about it :( Lyrics: We were both racemic when I first saw you I was an enantiomer and you were the other You're equimolar We had the same properties We had different effects on polarized light See you go through the polarimeter And get rotated Clockwise and anti You were positive You were rotating clockwise The opposite was rotating the other way Then our pairs of isomers can correctly be distinguished Carboxylic acids are really, really, really weak I've got the bases all thats left to do is react You'll make a salt and it will be ionic Its a slow reaction, it is an oate salt Carboxylic acids react with alcohol We formed an ester and a bottle of water Pass the catalyst Such as sulphuric acid Here's an example of esterification And water was removed by the reactants It started with ethanoic acid and some pentan-1-ol Carboxylic acids are really, really, really weak I've got the bases all thats left to do is react You'll make a salt and it will be ionic Its a slow reaction, it is an oate salt Its a weak acid, a little dissociated Its into ions, in solution Carry on reacting, we'll make it out as esters The hydroxyl proton, bit dissociated Esterification Alcohols and carboxylic acids Products were esters When i met you in the 50 ml beaker The O from the ester, came from the alcohol Take the ...
  • Methyl Tert-Butyl Ether (MTBE) Synthesis with a Reactive Distillation Unit The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. This Demonstration simulates a reactive distillation column that produces methyl tert-butyl ether (MTBE). The column is fed with an equimolar mixture of n-butane (an inert component) and iso-butene at stage 9 and pure methanol at stage 7. The reactive s... Contributed by: Housam Binous, Manel Selmi, Ines Wada, and Ahmed Bellagi
  • Computing Gas Permeation Using the Complete Mixing Model The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. Consider an equimolar binary mixture (composed of species A and B) fed to a gas permeation module. The feed rate x_f is equal to 1x10^4 cm^3 (STP)/s. This Demonstration computes the permeate composition y_p, the stage cut, ?, and the required membrane a... Contributed by: Housam Binous and Ahmed Bellagi
  • Chemmin' A ballin' chem vid to Kanye West's "Stronger." That that don't kill me must be equa mola' I need you to heat it up now Cause we doin' chem up in her' I know I got to be right now Cause I used calculator Man I've been waitin' all year now That's how long we've been chemmin'. Let's do chem tonight maybe a little thermochem tonight We should really do a lab tonight liquids turn to solids right? Goin' to solid, exothermic conversion Is this dipole or London Dispersion? I ask, cause I'm not sure Does anybody know this *** anymore? Bow in the presence of B-Mess Cuz he knows all, God bless Be honored by his greatness That he even helps with stuff this basic Go ahead, go Lewis, acidic Bronsted-Lowry, or Ahhrenius acidic Cuz you know you love the Kpa And hydronium ion, the PH is BA... chemists.....! CHORUS Check out all the entropy we've got And watch this enthalpy get hot You know Gibb's free energy or not? Damn, Hess's Law got me swearin' a lot I know Fe beats Ag In order of reactivity That's all them periodic trends, ya see? I see alkanes, alkynes left and right Excited electrons makin light 'Lectrons travelin' by electrolyte Volatile gases takin' flight Precipitates comin' into sight, Equilibrium shiftin' left to right Oxidizin' to hypochlorite Ugh, B-Mess you're makin' it (harder, better, faster, stronger) CHORUS you know about Mistah Le Chatellier Avagadro, Bohr an' Faraday And you know that chem is da bomb Don't act like I never told ya Ugh, B-Mess you're makin' it (harder ...
  • 6-6-JJW QUESTION: Lead (II) sulfide reacts with lead (II) sulfate to give lead metal and sulfur dioxide gas: PbS + PbSO4 = 2 Pb + 2 SO2 If 102 g of lead (II) sulfate reacts with an equimolar amount of lead (II) sulfide, what volume of sulfur dioxide would be produced at standard temperature and pressure? A.7.54 L B. 22.1 L C. 44.8 L D. 15.1 L
  • Stripping and Rectifying Cascades for Isopropyl Acetate Chemistry The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. Consider an equimolar feed composed of acetic acid (AA) and isopropanol (IPA). These two components react in the liquid phase to form water and isopropyl acetate (IPOAc). This esterification reaction is: AA + IPA ? H_2O+IPOAC. This Demonstration plots t... Contributed by: Housam Binous and Ahmed Bellagi
  • Stoplight Demo This time-lapsed photography illustrates the variation in binding affinity of two of our complexes for the dipicolinate (DPA) ***yte, a major component of bacterial spores. We start with a solution of the Eu(DO2A)(DPA) complex, which exhibits red luminescence under UV excitation, in buffer at neutral pH. Upon addition of equimolar Tb(DO2A) binary complex, which has a tenfold higher affinity for DPA, this moiety transfers from the Eu(DO2A) binary species to the Tb(DO2A) species, producing the bright green Tb(DO2A)(DPA) complex. This ligand transfer is beautifully illustrated in a 'Stoplight' transition from red to green.
  • ASPARTAME and Connecting the Dots. Aspartame A Dangerous Excitotoxin. So, what is an excitotoxin? These are substances, usually amino acids, that react with specialized receptors in the brain in such a way as to lead to destruction of certain types of brain cells. An enormous amount of both clinical and experimental evidence has accumulated over the past decade supporting this basic premise. Yet, the FDA still refuses to recognize the immediate and long term danger to the public caused by the practice of allowing various excitotoxins to be added to the food supply, such as MSG, hydrolyzed vegetable protein, and aspartame (NutraSweet and Equal -- the blue packets). Has the FDA repeated the aspartame approval process for sucralose, allowing a product with proven carcinogens to flood our food supply? Only time will tell, as it has with aspartame. Yet at the cost of human lives. Aspartame, the main ingredient in Equal and NutraSweet. Almost all of the independent research into aspartame found dangerous side effects in rodents. The FDA chose not to take these findings into account when it approved aspartame for public use. Over the course of 15 years, those same side effects increasingly appeared in humans. Not in everyone, of course — but in those who were vulnerable to the chemical structure of aspartame. Aspartame consumption strongly associated with migraines and seizures (Most all people they found that get migraines have low magnesium) the phenylalanine in aspartame could conceiveably mediate neurologic ...