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Look at the following reaction: N2 O4 (g) 2NO2 (g) + 32.1 kJ What would you have to do to the reaction in order to increase the magnitude of K?
what volume of 0.131 m bacl2 is required to react completely with 42.0 ml of 0.453 m na2so4? the net ionic equation for
Calculate the wavelength of light required to remove an electron from a ground state hydrogen atom.
Samples of hydrated manganese perchlorate are heated to determine the amount of crystal water:Mn(ClO4)2·nH2O ! Mn(ClO4)2 + nH2OTwo samples of different weight are studied:a) m (before heating) = 1.629 g ; m (after heating) = 1.142 gb) m (before heati..
Sulfuric acid in water dissociates completely into H+ and HSO4-; ions. The HSO4- ion dissociates to a limited extent into H+ and SO4(2-). The freezing point of a 0.1000; solution of sulfuric acid in water is 272.72 Calculate the molality of SO4(2-..
While a 3.60g sample of a non-electrolyte is dissolved in 80.0g of benzene, the resulting solution freezes at 2.75 degrees C. The Kf for benzene is 5.12 degress C/m. pure benzene freezes at 5.48 degrees C. Explain what is the molecular weight of t..
electromagnetic radiation has an energy of 926 j. the wavelength of this radiation is 856 nm. how many photons are
write an essay that explains the energy changes that occur during a chemical reaction. when is energy absorbed and when
The Space Shuttle usesaluminum metal and aluminum perchlorate in its reusable boosterrockets. The products of the reactionare aluminum oxide, aluminum chloride, nitrogen oxide gas, andsteam:
A 23.5g sample of a metal was heated to 63.45 degrees C. When the metal was placed in a constant pressure calorimeter containing 30.0g of water, the temperature of the water rose from 24.73 degrees C to 29.80 degrees C. Calculate the specific heat..
produces carbon dioxide and water. After 5.6 of ethanol (density = 0.789 ) was allowed to burn in the presence of 12.5 of oxygen gas, 3.10 of water (density = 1.00 ) was collected. Determine the theoretical yield of H2O and the percent yield for th..
Problem- When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag+, the flow of electrons will reduce the silver ion, caus..
Acetic Acid is a weak acid with a Ka value of 1.8x10^-5. What concentrationof acetic acid is needed to produce a [H+] of 3.5x10^-4?
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