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What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 7p1? Give your answer accurate to three significant figures.
A rock is found to contain 83.7% of the amount of uranium-238 that it contained when it was formed. (The amount that the rock contained when it was formed can be deduced from the presence of the decay products of u-238 .) How old is the rock?
0.650L of 0.420 M sulfuric acid is mixed with 0.600L of 0.240 M potassium hydroxide. What concentration of sulfuric acid remains after neutralization
The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C
When 12.0 mL of a 2.89E-4 M barium acetate solution is combined with 18.0 mL of a 5.24E-4 M sodium carbonate solution does a precipitate form
what voltage would you expect based on the joule tomson coefficient value for co2 if op amp is set to 100 for a
Once equilibrium is reached, what is the final temperature of the metal-water mixture. Neglect heat capacit of the vessel.
According to the following reaction, how many moles of ammonium nitrate are necessary to form 0.625 moles water
The speed needed to escape the pull of Earth's gravity is 11.3 km/s. What is this speed in mi/h.
With aqueous H2CrO4, compound A was oxidized to an optically inactive dicarboxylic acid C, C6H10O4. Give structures for compounds A, B, and C; do not specify stereochemistry
A solution was prepared by dissolving 10.12g of KCl.MgCl2 (277.85g/mol) in a sufficient water to give 2L. Calculate a.) the molar analytical concentration KCl. MgCl2 in this solution
it takes 48.0 j to raise the temperature of an 10.7 g piece of unknown metal from 13.0 degree celsius to 25.0 degree
306 mL of a .208 M solution of silver nitrate will react with 146mL of a .170 M solution of sodium phosphate to produce how many grams of silver phosphate precipitate?
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