For the exothermic reaction

PCl3(g)+Cl2(g)?PCl5(g)

Kp = 0.200 at a certain temperature.

A flask is charged with 0.500 atm PCl3 , 0.500 atm Cl2, and 0.300 atm PCl5 at this temperature.

What are the equilibrium partial pressures of PCl3 , Cl2, and PCl5, respectively?

Express your answers numerically in atmospheres with three digits after the decimal point, separated by commas.

You have two aqueous solutions: solution A is 20 mL of 1 M MgSo₄. Solution B a 25 mL of 1.5 M Na₂SO₄.

You take 5 mL of solution A and mix it with 10 mL of solution B.

a. What are the total moles of ions in solution A?

b. What are the total moles of ions in solution B?

c. What are the total moles of ions in solution C?

d. What are the total moles of sulfur atoms in solution A?

e. What are the total moles of sulfur atoms in solution B?

f. What are the total moles of sulfur atoms in solution C?

g. Rate the relative electrical conductivity of these solutions (1=least conductive, 3=most)

it has been said that producing oil is less destructive to the environment than producing coal , explain the reasoning behind the claim ? (type here please in simple language)

Determine the rate constant at 10 degrees C? If a reaction mixture is 0.160 M in C2H5Br, and 0.260 M in OH−, what is the initial rate of the reaction at 85 ∘C ? The kinetics of the following second-order reaction were studied as a function of temperature:
C2H5Br(aq)+OH−(aq)→C2H5OH(l)+Br−(aq)

A 10.010.0 mL sample of whiskey was diluted to 500.0 mL. A 4.004.00 mL aliquot of the diluted sample was removed and the ethanol, C2H5OHC2H5OH , was distilled into 50.00 mL of 0.022500.02250 M K2Cr2O7K2Cr2O7 and oxidized to acetic acid.

3C2H5OH+2Cr2O2−7+16H+⟶4Cr3++3CH3COOH+11H2O3C2H5OH+2Cr2O72−+16H+⟶4Cr3++3CH3COOH+11H2O

The excess Cr2O2−7Cr2O72− was then back titrated with 23.523.5 mL of 0.13300.1330 M Fe2+Fe2+ , producing Cr3+Cr3+ and Fe3+Fe3+ . Calculate the weight per volume percent (% w/v) of ethanol in the original whiskey sample.

Propose a reaction scheme for the synthesis of hyperbranched polyamide, in which there is no possibility of gelation. What are the reaction characteristics, which would affect the molar mass of the polymer.

Describe the structure of a steroid. Be detailed.

Determine the pH at the equivalence (stoichiometric) point in the titration of 48 mL of 0.29 M CH₃NH₂(aq) with 0.19 M HCl(aq). The K_b of methylamineis 3.6 x 10^-4.

21. Why does fat accumulate in the liver due to alcohol consumption? Select all that apply.

A. The accumulation of FADH2 activates fatty acid synthesis in the liver

B. The accumulation of NADH and inhibition of gluconeogenesis activate fatty acid synthesis in the liver

C. Excess glycogenolysis in the liver

D. The inhibition of gluconeogenesis activates fatty acid degradation in the liver

E. The accumulation of glucose in the liver leads to fatty acid synthesis

Please explain

Calculate the pH during the titration of 20.00 mL of 0.1000 M C2H5COOH(aq) with 0.1000 M KOH(aq) after 19.9 mL of the base have been added. Ka of propanoic acid = 1.3 x 10-5.

What are the essential features of the following type of ionization mode used in mass spectrometry? Include whether it is a hard or soft process and what are the main benefits and/or limitations.

a) Ramped or “Smart Fragmentation” (i mostly need this one)

b) chemical ionization

c) Atmospheric pressure chemical ionization

Calculate the pH for each of the following cases in the titration of of 100.0 mL of 0.180 M HClO(aq) with 0.180 M KOH(aq). The ionization constant for HClO is 4.0x10^-8

A. After 50.0 mL of KOH, pH=?

B. After the addition of 130.0 mL of KOH, pH=?

What details should be noted when measuring sample with Gel Permeation Chromatography?

Btw, Merry X-Mas !!

1) Van der Waals forces include both attractive and repulsive components.

Select one:

True False

2) Like Coulombic forces, van der Waals forces show a distance dependence .

Select one:

True False

3) The weakest hydrogen bonds have O-H...O bond angles of 180 degree.

Select one:

True False

4) Which intermolecular force has the longest range?

Select one:

a. monopole-monopole

b. monopole-dipole

c. monopole-induced dipole

d. dipole-induced dipole

e. dipole-dipole

5) Why is it easier to remove 2s electron from Li compared to a 1s electron?

Select one:

a. The 2s electrons feel greater Coulombic repulsion from the nucleus.

b. In part, because the radical extent of the 1s orbital is greater than thatof the 2s orbital.

c. The 1s orbital is higher in energy than the 2s orbital.

d. In part, because the 1s electrons shieldthe 2s electrons from Coulombic attraction to the nucleus.

6. Provide a rationale for why n-octane (linear compound) has a boiling point of 126 degree C whereas branched isomer 2,2,3,3-tetramethylbutane has a melting point of 107 degree C. Your answer should also include a mention of symmetry and point groups.

7) Is the distance dependence for a permanent dipole-permanent dipole interaction always 1/r^3 ? Justify your answer.

8) Match the potential energy distance dependence with the intermolecular force described

Monopole-permanent dipole 1/r^2

induced dipole-induced dipole 1/r

Permanent dipole-permanent dipole (fixed) 1/r^6

Dipole-induced dipole 1/r^3

monopole-monopole 1/r^4

Monopole-induced dipole