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A gaseous mixture of NO2 and N2O4 is in equilibrium. If the concentration of N2)4 is 5.3 x 10^-5 M, what is the concentration of NO2?
2 NO2 (g) ==> N2O4 (g) Kc = 170
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
A soft drink contains 35 mg. of sodium in 316g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
Calculate the solubility product (Ksp) for barium fluoride if the concentration of the barium ion is 3.6 x 10-3 M and of the fluoride ion is 7.2 x 10-3 M.
Steam at 100C is used to heat water. What is the minimum mass of steam required to melt 100g of ice at 0C and heat the resulting liquid to 100C?
To identify a diatomic gas (\rm X_2), a researcher carried out the following experiment: She weighed an empty 1.00-\rm L bulb, then filled it with the gas at 1.10 \rm atm and 23.0 ^\circ\rm C and weighed it again.
What molecule does most probable speed of 393m/s at 25*C? Also calculate the mean speed
Find the Qsp if The solubility product of Ag 2 CO 3 =6.2 × 10-12. Also determine whether a precipitate forms in the solution (Assume 20 dropsper milliliter.)
A star is estimated to have a mass of 1 multiplied by 1036 kg. Assuming it to be a sphere of average radius 6.5 multiplied by 105 km, calculate the average density of the star in units of grams per cubic centimeter.
Use the information given to calculate the enthalpy of formation of 3-Pentanol. a. +1204 kJmol-1 b. +2637 kJmol-1 c. -7000 kJmol-1 d. -372 kJmol-1
consider the following equilibrium process at 686degcco2g h2g cog h2ogthe equilibrium concentrations of the reacting
A 0.521-g sample of a compound is dissolved in enough water to form 100.0 mL of solution. This solution has an osmotic pressure of 2.45 atm at 25°C. If each molecule of the solute dissociates into two particles (in this solvent), what is the molar..
Ozonolysis of a single enantiomer of R produces S, an acyclic, optically active ketoaldehyde of formula C6H10O2. Propose structures for compounds Q, R, and S. Do not label them; simply draw all three of them in the space provided in any order.
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