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Problem- What is the mass of Napthtalene (C10H8) that must be added to 250.0 grams of Benzene (C6H6) to give a solution with a freezing point 2.20°C below thaat of pure Benzene?
Tabulate your results in summary form and write short paragraph summarizing what the results show.
Identify what complementary functional group would need to be present in the neuraminidase active site for (a) hydrogen bonding and (b) ioic interactions to oseltamivir to be observed?
A sulfuric acid solution is added to scale-forming water to convert calcium carbonate to calcium bicarbonate. Write the chemical equation for this reaction, and calculate the amount of sulfuric acid in milligrams per liter to neutralize 20 mg/l of..
The heat of formation of MnO is -385 kj/mol and that of Al2O3 is -1670 kj/mol. What is the heat of the reaction in kj
what concentration of aqueous nacl solution freezes at -15.2 c? the freezing point of pure water is 0.0 c and kf of
Determine if Ni should dissolve easily in Cu. Show that your determination is correct by providing the Cu-rich side of the appropriate equilibrium phase diagram.
A 17 mL sample of a solution of Li2S was diluted with water to 79 mL. A 60 mL sample of the dilute solution was found to contain 1.3 M Li+. What was the concentration of Li2S in the original undiluted solution
determine the original mass of liquid, G, that was placed in the container. (Ignore the volume occupied by the liquid in these calculations)
Calculate the weight of KMnO 4 contained in 2 liters of a 0.15N (not M) solution
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
A particular reactant decomposes with a half-life of 145 s when its initial concentration is 0.310 M. The same reactant decomposes with a half-life
The molecular geometries for H2O and SO2 are bent. The H-O-H bond angle in H2O is about 109degrees, whereas the bond angle for O-S-O is about 120degrees, EXplain using lewis diagrams why the molecules have the same molecular geometry but different..
Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 and the mass of lithium-7 is 7.01601. Use the atomic mass of lithium to calculate the relative abundances of the two isotopes.
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