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A mixture of 9.0g CH4 and 9.0g Xe is placed in a container and the total pressure is found to be 0.40atm. Find the partial pressure of CH4
the mass propotion of Mg:N=18:7. if 3.60 g reacts with 4.20 g N2 gas so the mass of product Mg3N2 is?
An unnormalized wavefunction for an electronin a carbon nanotube of length L is sin(2pix/L). Normalize this wavefunction.
Calculate the density and radius of the ball bearing (volume of a sphere of radius r is 4/3pi r^3).
Ammonia gas is condensed at its boiling point at 1.01325 bar at -33.4c by the application of a pressure infinitesimally greater than 1 bar. To evaporate ammonia at its boiling point requires the absorption of 23.30 kl/mol. Calculate
which ions in water make it 'hard'? is it possible to test for only one of these ions quantitatively in the presence of the other.
The pressure in an automobile tire is 1.83 atm at 26.0°C. What will be the pressure if the temperature warms up to 37.0°C.
A student mixes 175.0 grams of water at 62.31oC in a coffee-cup calorimeter with 175.0 grams of water at 25.84oC. The final temperature of the mixture is 41.71oC.
Calculate the amount of energy released by the freezing of 13.3 g of a liquid substance, given that the substance has a molar mass of 82.9 g/mol and a molar heat of fusion of 4.60 kj/mol.
If the pH probe was miscalibrated and reports the pH and reports the pH to be 1 unit higher than the true pH of the solution it is in, would the molar mass you report for the solid acid be higher than
What is the entropy change for the reaction 2H(g) + O2(g)-------- 2H2O(l) at 25 degree and 300 atm
When the epoxide 2-vinyloxirane reacts with lithium dibutylcuprate, followed by protonolysis, a compound A is the major product formed. Oxidation of A with PCC yields B, a compound that gives a positive Tollens test and has an intense UV absorptio..
The volume of a cylinder in an auto is 0.44L. the cylinder is filled with a gasoline and air mixture at 1.0 atm and then is compressed to 0.073L prior to ignition.
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