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A 1.00-mol sample of an ideal monatomic gas is compressed isothermally and irreversibly in one step from 2.50 atm to 6.50 atm at 300.0 K. Calculate ?G for this process.
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
a 12.6 g sample of NH4NO3 is dropped into a constant-pressure calorimeter containing 175 g of water at 23.5 C. What temperature will the water reach, assuming that the calorimeter container does not gain or lose any heat?
53.6 g sodium nitrate is dissolved in water to make 654 g of solution.What is the percent sodium nitrate in the solution.
A solution is made by dissolving 535 mg of this protein in 10.0 mL water. Calculate the osmotic pressure of this solution at 37.0°C in mm Hg.
Which of the following is an experimental fact that valence bond theory cannot explain, but molecular orbital theory can? A) the paramagnetism observed for O2
Determine what mass of hydrogen is required to form 624g of methanol by the reaction CO+2H2->CH3OH.
Determine what volume of 1.0 mol/L solution of Copper monosulfide can be made from 23.9 grams of Copper monosulfide?
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
Use VSEPR theory to predict the shape of each molecule: a) CF3; b) NCl3; c) SCl2; d) CS2; e) BFCl2.
What would be the most likely formula for a compound composed of Ca and N? The boiling point of oxygen is 55°K. What is the equivalent temperature on the Celsius scale?
The buret is misaligned with the drop counter so approximately 10 drops of NaOH are added to the HCl before they are counted
15 g of steam at 373 K is added to 250g of H2O (l) at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate ?S for the process.
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