The TAs ran this experiment and found that despite precise weighings and lab techniques, NaCl deviated the most from the literature value of kb,water, CaCl2 was almost exact, and KCl fell in the middle. What is a possible reason for this? Hint: Consider periodic trends

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A:

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Q: Calculate the volume occupied by 122.541 g of water at 22.35 °C.

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Q: How many moles of H2(g) are generated by the complete reaction of 0.145g of Mg(s) with excess HCl(aq...

A: The balanced reaction is ., Mg (s) + 2HCl (aq) ----> MgCl2 (s) + H2 (g)  

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A:

Q: Why is polyethene the most widely used plastic?

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Q: Predict the favored product of each of the following reduction reactions. If the product is chiral, ...

A: The reactions given are,  

Q: Determine the mass in grams of Li+ (6.941 g/mol) in 25.0 g of Li2SO4 (109.94 g/mol).   8.10 g   3....

A: Given: Mass of Li2SO4 = 25.0 g.  

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Q: Use standard Gibbs energies of formation to calculate the standard reaction Gibbs energies at 298 K ...

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Q: What is the hydronium ion concentration in 0.275 M nitrous acid? Ka= 7.1x10^-4

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Q: Convert the measuring units as indicated. 1. 10560 ft = mi 2. 21120 ft = mi 3. 8800 yd 4. 5 mi = mi ...

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Q: NH2

A:

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A: Solvent is a characteristic of water due to hydrogen bonding.

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Q: name the compound

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Q: Qualitatively pre entropy For each chemical reaction listed in the first column of the table below, ...

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Q: What is the hydronium ion concentration in 0.275 M nitrous acid? Ka= 7.1x10^-4

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Q: AL(NO3), + KaSOs Alb (Sos),+ KNOJ 3

A: Al(NO3)3 + K2SO3 → Al2(SO3)3 + KNO3

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A:

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.