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Ultra-high-vacuum experiments are routinely performed at a total pressure of 1.0x10^-10 torr. Calculate the mean free path of N2 molecules at 350K under these conditions The collision diamete of N2 is 3.75 Angstroms.
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
Calculate the specific heat capacity of a sample liquid if this 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 degree Celsius to 70 degree Celsius?
Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated to 1155 °C?
The system CO2(g) + H2(g) *) H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO.
A solution is prepared by dissolving 246 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Calculate the average speed of a gas that has a molar mass of 2.08 × 10-2 kg /?mol at a temperature of 22°C. The value for the gas constant, R, is 8.314 J /?mol K.
What volume 0.100 M NaOH will react completely with 25.00 mL of 0.100 M HCl?
Explain the structure for 4-ethyl-2,3-dimethyl-2-heptene?
A certain first-order reaction (products) has a rate constant of 6.90×10-3 s^{-1} at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
Description of Chemical Reactions, Why when heating and cooling three different separate substances in open containers does the mass change in two of them (one loss mass; the other gained mass) but stays the same in the third when it is known that..
Borane forms complexes with sulfides and amines. Draw a suitable structure to represent the complex formed between BH3 and dimethyl sulfide
Assuming the heat absorbed by the styrofoam is negligible, calculate the expected final temperature. The specific heat of water is 4.184 J g-1 K-1.
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