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A closed gas system initially has pressure and temperature of 641 mm Hg and 638.0 oC with the volume unknown. If the same closed system has values of 859 mm Hg, 3.20 L and 580 K, what was the initial volume in mL?
For the number of moles of oxygen gas collected, how many moles of hydrogen peroxide decomposed. Be sure to take into account water vapor pressure 14mL of Oxygen gas was collected.
A balloon with an initial volume of 3.8 L at a temperature of 305 K is warmed to 385 K. What is its volume at the final temperature?
Write the net ionic equations for the reactions.
A gaseous fuel mixture stored at 745mmHg and 298 K contains only methane CH4 and propane C3H8. When 11.5L of this fuel mixture is burned, it produces 774kJ of heat. What is the mole fraction of methane in the mixture
Calculate the energy requird to transform this steam into an ice cube at -20 degree C. Also, graph this phase change, with energy as a function of temperature
If a 1.8 mole sample of a compound weighs 195 g and is found to be 11.18% H and 88.82% C. explain what is the molecular formula for the compound?
What is the formula of the manganese chloride compound produced in the reaction? (Type your answer using the format CO2 for CO2.)
what are the concentrations of the significant ionic species of a 0.100M solution of lysine at pH=4
What would be the de Broglie wavelength of a helium atom (atomic weight = 4.00 g/mol) moving at 100 m/s ?
The Rb-Sr data given below are for whole-rock samples from amphibolite metamorphic facies of theLewisian gneiss complex in Scotland (Moorbath et al., 1975), and the Sm-Nd data are for whole-rocksamples from granulite metamorphic facies of the same..
find calories and joules lost when 75.0 g of water H20 cools from 86.4 degrees celsius to 2.1 degrees celsius.
Question- One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH3 to NO, 4NH3(g)+5O2(g)?4NO(g)+6H2O(g) How many grams of NO and of H2O form
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