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Find the identity of an unkown metal, M, if .3550 grams of the unknown metal reacts with nitrogen gas to give .4025 grams of a metal nitride, M3N2
What is the maximum kinetic energy of an ejected electron if platinum metal is irradiated with 174-nm light? The threshold wavelength for a platinum metal surface is 212 nm.
Container A (with porous walls) is filled with air at STP. It is then inserted into a large enclosed container (B) which is then flushed with H2(g). What will happen to the pressure inside container A?
A 33.5 mL sample of a KOH solution of unknown concentration requires 22.1 mL of 0.200 M solution to reach the end point in a titration. What is the molarity of the KOH solution?
the activation energy for the following reaction is 60. kjmol.sn2 2co3 rarr sn4 2co2by what factor how many times
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which precipitates first?
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.120 M HCIO (aq) with 0.120M KOH (aq)
What is the pH of the resulting solution if 30.00 mL of 0.10 M acetic acid is added to 10.00 mL of 0.10 M NaOH. Assume that the volumes of the solutions are additive. Ka = 1.8 x 10-5 for CH3CO2H.
A compound is composed of nitrogen (87.4% by mass) and hydrogen. a gaseous sample H2+N=NH2 has a density of 9*10^-7kg/mL at 600 torr and 150C
Sketch a phase diagram for benzene and locate these points: the triple point (5.5 0C and 3.4 mmHg), the normal boiling point (80.10C)
consider the electronic structure of the element bismuth.athe first ionization energy of bismuth is ei1 703 kj mol.
Can someone please show me a mechanism for a Diels-Alder Green Organic Phototchemistry reaction mechanism? We used 9-(hydroxymethyl) anthracene, deionized water, and N-methylmaleimide as the reagents and allowed to solution to reflux.
Radio waves travel at the speed of light which is 3x10^8 m/s. how many kilometers will radio messages to outer space travel in one year
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