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What is the purpose of Hydrochloric Acid (HCl) in an Vanillin reduction experiment? Explain how to differentiate between the IR spectra of vanillin and vanillyl alcohol.
Hint: There are two important differences.
for the reaction 2 no2 g --gt n2 g 2 o2 g3.60 bar of no2 g is initially placed in a 1.00 l container. at equilibrium
Hydrogen iodide decomposes according to the equation: 2HI(g) H2(g) + I2(g) Kc = 0.0156 at 400°C. A 0.57 mol sample of HI was injected into a 2.0 L reaction vessel held at 400°C. Calculate the concentration of HI at equilibrium.
Find the volume of 1.00M KOH which must be added to 200mL of 1.00M glycolic acid (pKa=3.83) to produce a buffer solution
If 15.00mL of a 1.00 M HCl solution is mixed with 25.00mL of a 0.250 M NaOH solution in a process that produces 273 mg of NaCl, explain what is the percent yield? A 25.00mL sample of vinegar acetic acid is titrated to neutralization with 22.64mL o..
light of wavelength 291 nm shines on apiece of magnesium metal. what is the speed of the ejected electron? light energy
Will B-myrcene and allo-ocimene structures not form Diels-alder adducts with maleic anhydride? explain why in each case.
At 50 C, the solubility of silver chloride, AgCl is 5.2 x 10^-4 g/100mL. Calculate the Ksp at this temperature.
One ecologically important equilibrium is that between carbonate and hydrogencarbonate (bicarbonate) ions in natural water. (a) Th e standard Gibbs energies of formation of CO3
Consider all possible reactions except reactions of conjugate bases of strong acids with water and complex ion formation for which equilibrium constants are less than 10. You can ignore the effects of ionic strength.
Problem- A titration is performed to determine the concentration of HCl. A 50.00 mL sample is placed in a flask and is titrated with 0.1524 M NaOH.
when 15.0 g of steam drops in temperature from 275.0 degc to 250.0 degc how much heat energy is released? cp of h2o
Combining aqueous solutions of BaI2 and Na2SO4 gives a precipitate. Which ion(s) is/are spectator ions in the reaction
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