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Three compounds were found to have the same empirical formula, that is the same number of carbons, hydrogens, oxygens, etc.; however, compound A absorbs at 268 nm, B at 278 nm, and C at 316 nm. What might you conclude about the structures of these three compounds?
You react 2.33 g of iron (III) with 5.0 mL of 0.500 M solution of sodium phosphate to form iron (III) phosphate and sodium chloride. How many grams of sodium chloride ought to be produced
when 2.55 g of an unknown weak monoprotic acid ha molar mass 85.0 gmol is dissolved in 250.0 g of water the freezing
what are the electronic configurations of Pb and Pb2+, also Mo and Mo2+. please explain what are their valence electrons.
Why would the active form of thrombin be produced only when an injury occurs to tissue?
The freezing point of 3.5 grams of an unknown organic compound in 100 ml of benzene is 5.0 c calculate the molecular weight of the unknown compound.
If 25.00 mL of 0.687 M Fe(NO3)2 are added to a flask containing 0.289 g of aluminum metal, what compounds will be present in the flask once the reaction is complete? (Ignore water, etc.)
It is found that a gas undergoes a zero-order decomposition reaction in the presence of a nickel catalyst. If the rate constant for this reaction is 8.1 x 10-2 mol/ (l*s), how long will it take for the concentration of the gas to change from an in..
Give explanation for arrangements how you decide the boiling points comparison - Arrange all these compounds in order of increasing boiling points
A 363 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 636 mmHg. Calculate the moles of Ar present.
It takes 151 kj/mol to break an iodine-iodine single bond. Calculate the maximum wavelength of light for which an iodine-iodine single bond could be broken by absorbing a single photon.
If you used a concentration of 0.0065 M sodium thiosulfate instead of 0.0050 M sodium thiosulfate called for in reaction 1, what effects would this have, if any, on the rate of the reaction
calculate the molecular mass of the nonionic sloutes. 6403 grams of solute in 3.90 x 10^2 grams of water raises the boiling point to 100.680 c.
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