The concentration of many colorful solutions can be determined by the amount of light absorbed by the solution. The relationship between absorbance and concentration is a linear relationship known as Beer's law. The data below show the absorbance of a series of solutions of known concentrations of Substance A. Plot these data using Excel and determine the equation of the trendline. Use that equation to determine the concentration (M) of an unknown sample of Substance A. Concentration of Substance A (M) Absorbance (x-axis) (y-axis) 0 0.050 0.100 0.200 0.400 Unknown Type answer: 0 0.024 0.052 0.102 0.195 0.106

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Q: You dissolved 3.00 g of calcium chloride and 3.50 g of sodium carbonate in tap water separately,…

A: CaCl2(aq)+Na2CO3(aq)→2NaCl(aq)+CaCO3(s)

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Q: access important values if needed for this question. Be sure to specify states such as (aq) or (s).…

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Q: How many grams of Cu(OH)2 will precipitate

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Q: A 35.7 mL soloution of MgCl₂ with unknown concentration is titrated to the equivalence point using…

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Q: is formed from... Br NH2 N-H (A) (B) (C) (D) (E)

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Q: f) C=N (1) LiAlH4 (2) HCI in water

A: Given,The reaction is:f)

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Q: H;PO4 HO Нeat

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Q: Draw a molecular structure of a section of a snowflake. Use at least 25 molecules of water.

A: Snowflakes are water crystals that are formed by connecting the water molecules to a crystal…

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.