A. Calculate KP at 298 K for the reaction NO(g)+12O2(g)→NO2(g) assuming that ΔH∘R is constant over the interval 298-600 K.

B. Calculate KP at 486 K for this reaction assuming that ΔH∘R is constant over the interval 298-600 K.

Thank you

1. How many grams of ethylene glycol, C2H4(OH)2, are needed per kilogram of water to protect radiator fluid against freezing down to -10°C?

2. For benzene, C6H6, the freezing point constant, Kf, is 5.12 K oC/m and its normal freezing point is 5.5°C. What is the freezing point of a solution containing 100.0 g of benzene and 20.0 g of naphthalene (C10H8)?

3. When 5.0 g of an unknown substance is dissolved in 100.0 g of water, the freezing point of the solution decreases by 1.5°C. What is the molar mass of the unknown substance if the compound does not dissociate to form ions in solution?

4. If 2.00 moles of a substance is dissolved in 1.00 kg of water, the freezing point of the solution decreases by 7.44°C. Does this substance dissociate to form ions in solution? Explain why.

5. Calculate the freezing point of a 0.2 m CaCl2 aqueous solution, assuming it dissociates completely to form ions in solution.

At 25ºC the osmotic pressure of an aqueous CaCl2 solution is 9545.4 torr; the solution has a density of 1.71 g/mL. Calculate the new boiling point of this solution in Celsius. Assume the normal boiling point of water is 100ºC. (MMCaCl2 = 110.984 g/mol; Kb, H2O = 0.512 ºC/m; Kf, H2O = 1.86ºC/m)

I've literally asked this question 4 times now... its pretty sad people can't read as smart as they are to be able to answer these questions....

What amount of energy is required to change a spherical drop of water with a diameter of 1.60 mm to SIX (6) smaller spherical drops of equal size? The surface tension, γ, of water at room temperature is 72.0 mJ/m2. PLEASE DO NOT GIVE ME ANSWER FOR FIVE (5) ITS SIX (6)!

Use standard heat of formations to find the heat for the combustion of 5.0 g of Methane gas CH4 to form carbon dioxide and water vapor

A series of volumetric flasks are being prepared for the analysis of mercury in the drinking water supply using the method of standard addition. To prepare the flasks, 10 mL of drinking water and a varying amount of standard are added to each flask, and the flasks are brought to the 25.00mL mark on the volumetric flask.

The concentration of mercury standard used was 20.0 microgram/mL.

Please use the data tabulated below to provide the concentration of mercury in the drinking water, in units of micrograms/mL.

It is recommended to use Excel or similar software.

What are 3 interactions that affect solubility, and how they affect solubility?

you are asked to prepared 1-bromo-2,2,3,3-tetramethlylbuane by exposure to 2,2,3,3-tetramethylbutane to Br2 in the presence of light. How can yield of this monobrominated product be maximized while minimazing the formation of polybrominated product?

Prove that Inter energy is Independent of the path

Determine the colligative (effective) molality of a truly saturated salt solution and the freezing point of a truly saturated salt solution (solubility limit of NaCl is 35.7 g)

Describe the trends in properties for the elements belonging to Group VI A in the periodic table. How do the following properties vary down the group?

a. Atomic Radius

b. 1st Ionization Energy

c. Electron Affinity

d. Oxidation number

e. Electronic Configuration starting from the preceding noble gas configuration

A mixture of benzene (C6H6), toluene (CH3C6H5) and methane (CH4) was injected into a gas chromatograph column that is12.5 m long. The peaks were observed at 40 s (methane), 260 s (benzene), and 272 s (toluene).

(a) Calculate the adjusted retention time (tS) and capacity factor (k) for each solute.

(b) Find the relative retention () of toluene and benzene.

(c) If the width at the base (w) of the peaks for toluene and benzene is 16 and 20 s, respectively, calculate the resolution of the two peaks.

(d) Calculate the number of theoretical plates and the theoretical plate height for toluene and benzene in this experiment.

Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our atmosphere. But at high temperatures, the reaction below can proceed to a measurable extent. N2(g) + O2(g) ⇔ 2 NO(g) At 3000 K, the reaction above has Keq = 0.0153. If 0.2702 mol of pure NO is injected into an evacuated 2.0-L container and heated to 3000K, what will be the equilibrium concentration of NO?

A solution contains 3.50 mol of water and 1.50 mol of nonvolatile glucose (C6H12O6).

a. What is the mole fraction of water in this solution?
b. What is the vapor pressure of the solution at 25°C, given that the vapor pressure of pure water at 25 °C is 23.8 torr?

Find the velocity of an electron emitted by a metal whose threshold frequency is 2.27×10¹⁴ s−1 when it is exposed to visible light of wavelength 5.11×10⁻⁷ m .