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Initially a mixture contains 0.601 mol each of N2 and O2 in an 7.65-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C. N2(g) + O2(g) 2 NO(g)
Calculate the volume (in mL) of a 0.740 M KOH solution that should be added to 4.750 g of HEPES (MW=238.306 g/mol, pKa = 7.56) to give a pH of 7.22.
Hydrogen was cooled from 150 c to 50 c. It's new volume is 75 ml. What was the original volume?
How would you demonstrate that phosphoglycerate mutase uses an enzyme bound phosphate
a sample of SO2 gas which weighs 0.81 grams has a volume of 1.20 liters when collected at 25 degrees celcius, what would be the pressure of the gas sample?
Which of these names and formulae do NOT match correctly?
what is the mass in grams of 3.17x10^20 atoms of the element?
A 3.46 g sample of zinc heated to 95.4 C was dropped into 50 g of water at 20.7 C in a calorimeter. The temperature rose to 21.2 C. What is the specific heat of zinc?
Which of the following statement correctly identifies three proteins that appear in the blood as a result of an occluded coronary artery that led to a myocardial infarction (MI)
Determine the change in Ssys for the process if the specific heat capacity for ethanol = 2.42 J/g K. express your answer in units of J/K
A solution is prepared by dissolving 270 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
One mole of an ideal monoatomic gas initially at 300 K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. The molar heat capacity for constant volume for the gas is 32VCR=. Calculate dU, dH, q, w, and the final temperatur..
How many Protons, Neutrons, and Electron of 63Li+. What are the mass number and atomic number of each of these atoms
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