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We mixed ortho vanillin with carbethoxymethylene triphenyphosphorane. I would like to know how the imide was created in the first step.
What protonated the amine before the amine protonates the carbonyl?
Which molecule has the largest mass?A sample of carbon consists of the isotopes carbon-12 and carbon-13.A sample of oxygen consists of the isotopes oxygen-16 and oxygen-17.Write the formula of all the different carbon dioxide molecules that can be..
Assume that the estimates of the standard deviation for the mean mass of a series of three measurements, a serious of six measurements, and a series of nine measurements were identical.
When is the standard enthalpy of a reaction for which the equilibrium constant is doubled,when the temperature is increased by 10 K at 298 K
A sample contains Ba3(PO4)2, CdS, AgCl, NH4Cl, and ZnS. Identify the soluble ions after the addition of 6 M HCl; H2S and 0.2 M HCl; OH- to a pH of 8; and (NH4)2HPO4 with NH3. A) Ba3(PO4)2 B) NH4Cl C) CdS D) ZnS E) AgCl
aniline, an organic amine, C6H5NH2, a weak base with Kb of 4.0x10^-10, reacts with water to form its conjugate acid, C6H5NH3^+. write the equation and the base dissociation constant for aniline.
How many grams of oxygen can be added to the balloon before it pops? Assume the balloon had no gas in it before oxygen is added.
A solution is made by adding 0.51 mol of lithium hydroxide (LiOH) in enough water to form 5 L of solution. Calculate the pH.
What quantity of Cu(NO3)2 is present in 201 mL of a 0.50 M solution?
Calculate the reaction's rate constant (k) at this temperature. Calculate the reaction's half-life (t1/2) at this temperature
draw the major form of your drug whenph is low (acidic medium) for all acid base groups c. draw the major form of drug when ph is high (basic medium for all acid base groups
Is density of an organic molecule directly related to the molecular weight of a substance. (That is, does density always increase when molecular weight increases) Use the examples above to explain.
A certain mass of oxygen was collected over water when potassium chlorate was decomposed by heating. The volume of the oxygen sample collected was 870 mL at 40C and a barometric pressure of 755 torr.
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