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Explain what property of the sodium salt of methyl salicylate, as compared to the disodium salt of salicylic acid, made it possible to visually gauge the progress of this basic hydrolysis of methylsalicylate?
you have an unknown which may or may not be a hydrocarbon. it gives a negative test with br2chcl3 but decolorizes
Find the solubility of AgI in 2.5 M NH3 (Ksp of AgI = 8.3x10^-17 and Kf of Ag(NH3)^2+ = 1.7X10^7)
Calculate the mass of unknown solid required to prepare 100 mL of a solution that is 100 ppm in Ca by assuming that the sample contains 50 wt% CaCO3.
A 48.1 mL sample of gas in a cylinder equipped with a piston is warmed from 22 degrees C to 90 degrees C. what is the volume at final temperature?
Demonstrate that L^2and Lzcommute withanyHamiltonian (for a single particle) for which the potential energy is spherically symmetric
if you have water of 330 ml at 25 degrees and then combine water of 130 ml at 95 degrees celsius temperature then
Calcium fluoride has a Ksp of 3.9 x 10^-11 at 25 C. What is the fluoride ion concentration at equilibrium
How much heat energy is needed to to raise the tempature of a 60g sample of aluminum from 31C too 99.3C? the specific heat if aluminum is .897 J/g x K.
What would be the pH of a buffer system containing 1.0 M NH3 and 0.10 M NH4Cl. (Kb(NH3) = 1.8 x 10-5)
Suppose a 80-kg person drinks 3 L of water every day for 80 years with a arsenic concentration of 50 microgram/L. PF for arsenic is 1.75 (mg/kg-day)-1. Find the daily average dosage.
a sample of nitrogen has a volume of 630 ml at a temperature of 49 degc. assuming that the pressure is constant what
the perimeter area and volume of a tetrahedron the solid whose faces are 4 equilateral triangles are respectively p 6a
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