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Calculate the pH of each of the following solutions containing two solutes in the concentrations indicated. (a) 0.50 M HOAc (acetic acid), 0.5 M NaOAc (sodium acetate); Ka = 1.8 x 10-5
Write a balanced chemical reaction (using structural formulas) that describes a NAS reaction between benzyl alcohol and propanoic anhydride.
In which of the compounds CH4, NH3,H2O, SiH4, or H2S does hydrogen bear a partial negative charge
Calculate the wavelength (in nanometers) of a muon weighing 1.884x10^25g traveling at 325m/s.
Draw all of the stereoisomers that result when (E)-but-2-ene is hydrogenated with D2 over a metal catalyst. If more than one stereoisomer is produced, click the "New" tool on the toolbar after you input each structure so that you can input another..
In the fermentation of glucose (wine making ), a volume of 780 ml of CO2 gas was produced 37 degree celsius and 1.00 atm. What is the volume (L) of the gas when measured at 22 degree celsius and 675 mmHg
What mass of sucrose should be combined with 454 g of water to make a solution with an osmotic pressure of 8.85 atm at 285 K
At 25ºC the solubility product constant, Ksp, for magnesium phosphate, Mg3(PO4)2, is 1.0´10-24. The solubility product constant for magnesium fluoride, MgF2, is 7.0´10-11.
A mole of sodium hydroxide has a mass of 40 g. In order to prepare a .1M solution, how many grams of sodium hydroxide must be added to 500 mL of water
Below is the 1H NMR spectrum of the following triazine structure. In the expansions of the spectrum, place the observed multiplicity in the bin above the resonance.
A solution of Na3PO4 is added dropwise to a solution that is 0.0494 M in Ag+ and 0.00318 M in Cu2+. The Ksp of Ag3PO4 is 8.89e-17. The Ksp of Cu3(PO4)2 is 1.4e-37. (a) What concentration of PO43- is necessary to begin precipitation
Classify each reaction and give the name of all the chemical formula involved for each number
Neat, aliphatic, primary amines show two absorptions between 3400 to 3330 cm-1 and 3330 to 3250 cm-1 due respectively to asymmetrical and symmetrical stretch. Stretch at 3300 cm-1. Why do tertiary amines not absorb in this region of the spectrum?
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