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(a) If you were going to build a system to check the effectiveness of automobile catalytic converters on cars, what substances would you want to look for in the car exhaust?
(b) Automobile catalytic converters have to work at high temperatures, as hot exhaust gases stream through them. In what ways could this be an advantage? In what ways a disadvantage?
(c) Why is the rate of flow of exhaust gases over a catalytic converter important?
A certain reaction has Ho = 29.80 kJ and So = 20.80 J/K. (a) Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is . (b) Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the..
What is the wavelength(in nm) of radiation that has an energy content of 2.13x10^3 kJ/mol? In which region of the electromagnetic spectrum is this radiation found
An enzyme is inactivated by the addition of a substance to a solution containing the enzyme. Suggest three ways to find out whether the substance is a reversible or irreversible inhibitor.
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 138 g toluene and 106 g benzene.
The chemical formula for caffeine isC8H10N4O2. Explain how many grams of carbon are present in a 12.46 gram sample of caffeine
Diethyl ether is a volatile organic compound. The vapor pressure of diethyl ether is 401 mm Hg at 18°C and the Hvap = 26.0 kJ/mol. Calculate the vapor pressure of diethyl ether at 40°C.
A white precipitate formed with barium chloride, BaCl2: what is the chemical equation for the reaction of the reagent with the ion
if 1.30 g of P-aminophenol is allowed to react with excess acetic anhydride, what is the theoretical yield of acetaminophen in moles. in grams
Granite rock has a specific heat capacity of 0.80 J·°C-1·g-1. A 15 g rock was warmed by 202 J of energy from sunlight. What was the increase in temperature of the rock (in °C)?
The freezing point of benzene is 5.5oC. What is the freezing point of a solution of 5.00 g naphthalene (C10H8) in 444 g of benzene (Kf = 4.90oC/m)
Calculate the volume occupied by 35.2 g of methane gas (CH4) at 25°C and 1.0 atm. (R = 0.08206 L*atm/K*mol)
what volume of 0.684 m mno4- solution is required to react completely with 27.50 ml 0f 0.250 m fe? this is an
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