opic: Transmittance and absorbance, lambert-beer law Ketorolac Tromethamine (C15H13NO3 • C4H11NO3) has an absorbance of 0.615 at 318.6 nm and 1 cm optical path in 3.5 µg / mL concentration solutions. A 2.9252 g sample from a tablet is diluted with water to 250 mL. They take 25 mL add 3.0 mL of 0.1 N H2SO4 and dilute to 500 mL. A 10 mL aliquot is taken and diluted to 200 mL. Of the latter solution, the absorbance at 318.6 nm is measured, resulting in 0.523. Calculate the milligrams of Ketorolac Tromethamine for each compressed. Fact: Average weight of 6 tablets equals 1924.5 mg

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.