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Which of these substances are elements?
a. silicone
b. quartz
c. iodine
d. water
e. silicon
f. lead
The same mass of solute is dissolved in 9.82 g of t-butanol instead of cyclohexane. What is the fexpected freezing point change of the solution
Devise a synthetic strategy to transform 1-Bromobutane to heptane
Calibration and collection of equilibrium data are different experiment. Why could you use the calibration curve for getting equilibrium data?
What is it about the structures of poly(acetylene) and poly(p-phenylenevinylene), and not poly(1-butene), that allows these polymers to conduct electricity? Use discussions of hybridization, pie bonding, and resonance as the basis for your argumen..
The flask contains 10.0ml of HCL and a few drops of phenolphthalein indicator. The buret contains 0.270 M Naoh. What volume of Naoh is needed to reach the end point of titration. What was the initial concentration of HCl
Calculate the molar solubility of silver carbonate in a solution that already contains 2.2 x 10-3 M silver nitrate, AgNO3. Ksp=8.85 x 10^-12.
glucose-6-p is a branch point intermediate which is used in three different metabolic pathways.nbspidentify name each
At a certain temperature, reaction has equilibrium constant (Kc) of 1.9 x10^19. Determine the equlibrium constant for the reaction based on this information at the same temperature.
Write the balanced net ionic equation for the standardization of the sodium thiosulfate solution by combining IO3-(aq) + 8I-(aq) + 6H+(aq) ----->3I3-(aq) + 3H2O(l)
Describe the preparation of 3 liters of a .2 m na-acetate buffer, ph 5.0, starting from solid sodium acetate trihydrate (mw 130) and a 1 M solution of acetic acid.
What is the pH at the stoichiometric point? What is the pH when 105% of the base required to reach the stoichiometric point has been added?
Compute the [H+] in a 0.10 M acetic acid solution that is 0.10 M with respect to sodium acetate. The Ki constant of acetic acid is 1.8 x 10-5. Explain what is the corresponding pH
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