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Given the equilibrium constants below: (1/2) N2(g) + (1/2) O2(g) <---> NO(g) Kc= 4.8*10^(-10) 2 NO2(g) <---> 2 NO(g) + O2(g) Kc= 1.1*10^(-5) What is the equilibrium constant for: 2 NO2(g) <---> N2(g) + 2 O2(g) Kc=?
Aspirin (acetylsalicylic acid) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600 L of water and measured the ph . What was the ka value calculated by the student if the ph of the..
The standard (1 bar) boiling point of acetone is 56.1 C, and its enthalpy of vaporization is 29.1 kJ/mol. Calculate the vapor pressure of acetone at 55.1 C.
When 2-chloro-2-methylbutane is treated with a variety of strong bases, the products always seem contain two isomers (A and B) of formula C5H10.
The water level in a graduated cylinder initially at 225 rises to 278 after a piece of lead is submerged. What is the mass in grams of the lead?
A tank having a volume of 1000 ft3 contains 22 lb of CO2, 46 lb of O2 and 154 lb of N2. What pressure will be indicated by a pressure gage attached to the tank if the gas is at ambient temperature (80°F)
The precipitate was filtered, dried, and weighed. A total of 2.10 g calcium fluoride was collected. What was the percentage of CsF in the original sample?
Write an equation for the formation of NH3g from its elements in its standard states.
Comment on whether or not your calculation supports the idea that thermal pollution around the cooling vents of nuclear reactors is detrimental to marine life
15.0 grams of an unknown sugar was dissolved in water and the final volume of the solution was brought up to 1.00 L. The osmotic pressure of this solution was determined to be 2.44 atm at 25°C. Which of the sugars below was most likely the unknown..
Which molecule is polar? Which of the following is not an ionic compound? Which of the following is not an ionic compound?
What size sample should be taken so that the percent purity is equal to five times the milliliters of 0.05M NaOH used to titrate it?
Calculate the change in entropy of a system (in Joules) when 20.0 moles of oxygen gas undergo an isothermal reversible expansion from 30.0 L to 80.0 L.
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