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2 NO (g) + O2 --> 2 NO2 (g)A sample of air at a certain temperature is contaminated with 2.0ppm of NO by volume. The half life of the reaction has been estimated to be 6.4*103 min. What would the half life beif the initial concentration of NO were 16 ppm.
Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al(s) + 3O2 (g) = 2Al2O3(s). How many liters of O2 gas, measured at 779 mm Hg and 30 C, are required to completely react with 2.5 mol of Al?
In molecular orbital theory: 1. What is a bonding orbital and how does it impact the strength of a bond? 2. What is an antibonding orbital and how does it impact the strength of a bond
which of the following statements is true of the titration of a weak acid by a strong base such as sodium hydroxide. At the equivalence point, the pH is less than 7. the moles of acid are greater than the moles of base at the equivalence point
a what safety precaution should you follow when working with thegas chromatogram injection port?b what will raising the
Research in surface science is carried out using ultra?high vacuum chambers that can sustain pressures as low as 10?12 torr. How many molecules are there in 1.00 cm3 volume inside such an apparatus at 298 K? What is the corresponding molar volume ..
What is the mass in grams of 1.56 moles of menthol?
The equilibrium expression for the reaction: 2C(s) + 2H2O(I) ? CH4(g) + CO2(g) is Keq = [CH4][CO2]. If an equilibrium reaction shifts to the right when the system is cooled, this indicates that the reaction is endothermic
Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S.
What is the atomic mass of unknown element X if it has the following isotopic composition.
Indicate whether the solubility of carbon dioxide gas in water increases or decreases for each of the following. 1.) The temperature of the solution increases
Will the yeast cells or the corn seedling have a higher metabolic rate when compared on a mass specific basis (in moles ATP/gram organism x hr)?
Determine the limiting reagent. (b) after the reaction has gone to completion, calculate the concentration of all species in the reaction
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