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Nitrogen dioxide is obtained in a cylinder, but exists in equilibrium with dinitrogen tetrooxide. A 5.00g sample of this mixture is transferred to a 0.5L flask at 298K. what is the mol fraction of no2 in the flask? Kc= 4.61*10^-3 n204-> 2 NO2 ans: 0.177
determining the difference between vinylic & allylic hydrogens in a Cyclohexene, how many of each, what determines it?
NaOH + CO2 -→ Na2CO3 + H2O . If the average human body discharges 536 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft?
Determine the phase composition and temperature when equilibrium is reestablished?
Lead has a face-centered cubic lattice with all atoms at the lattice points and a unit-cell edge length of 495.0pm its atomic mass is 207.2 amu what is the density of lead?
The pKa of acetic acid, HC2H3O2, is 4.76. A buffer solution was made using an unspecified amount of acetic acid and 0.30 mol of NaC2H3O2 in enough water to make 1.50 L of solution.
3NaHCO3 + H3C6H5O7= 3CO2 + 3H2O + Na3C6H5O7 1g of sodium bicarbonate and 1g citric acid are allowed to react. Find the limiting reagent.
Use metric conversion factors to solve the following problem. A park has an area of 150000 m^2. What is the area in km^2?
Wavelength of light required to break C-C, C-Cl, O=O bonds - Calculate the frequency and wavelength of the least energetic photon that can break an average C-C bond. In what region of the electromagnetic spectrum is this radiation?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more com- plicated, but this is a reasonable ?rst ap proximation.)
Important information about Chem problem, A 25 mL sample of .13M HCl is mixed with 15mL of .24M NaOH. The pH of the resulting solution will be nearest. The answer is 11.9
Determine the mass of precipitate (in grams) that forms when 213.8 mL of 0.132 M CaCl2 solution is reacted with excess AgNO3 solution.
what is the molarity of a solution when 2.25g NaF is dissolved in enough water to make 250mL of solution
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