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One mole of monatomic ideal gas is held at a constant temperature of 300 K while the volume is changed reversibly from 5.0 to 100.01. find the heat, work , energy, enthalpy, and entropy change for this process.
When an amino acid is dissolved in a buffer solution, the pH of which is less than the isoelectric point of that amino acid, and an electric current is passed through the solution
If at a given moment O2 is reacting at a rate of 0.317 mol/L s, what is the rate of formation of H2O?
Account for the fact that H3C-Cl (dipole moment 1.94D) and H3C-F (dipole moment 1.82D) have almost identical dipole moments, even though fluorine is considerably more electronegative than chlorine.
Which of the following is false? A. Molecules with strong intermolecular forces have higher surface tension. B. Molecules with strong intermolecular forces have higher viscosities.
A drug with the molecular formula C25H38O5 has 2.14 x 10^23 carbon atoms. What is the mass of the sample?
Calcium sulfide has a face-centered cubic unit cell with calcium ions in octahedral holes. If the radius of sulfide ion is 184pm and the density of CaS is 2.60 g/cm3.
A liquid unknown was found to be insoluble in water and soluble in cyclohexane and alcohol; the unknown was found to have a boiling point of 58 degrees C at 670mm Hg
DNA is thought to be the chemical compound responsible for the process of heredity. A sample of DNA was found to have density 1.10 g/cm^3 and its molecular weight was estimated to be 3.04 x 10^8 g. What is the average volume occupied by one DNA mo..
How long does it take to deposit a coating of gold 1.00um thick on a disk-shaped medallion 4.00 cm in diameter and 2.00 mm thick at constant current of 89 A?
how many water molecules are in one cell? This can be a rough calculation, using a water density of 1g/mL and 3x10-23g as the mass of one water molecule
A solution of I2 was standardized with ascorbic acid Using a 0..1 g sample of pure ascorbic acid, 23.52 mL of I2 were required to reach the starch end point.
For the titration of 45.0 mL of 0.0100 M Sn2 by 0.0500 M Tl3 in 1 M HCl, using Pt and Ag | AgCl electrodes:(a) What is the balanced titration reaction
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