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Consider the reaction Pb(s) + 2H^+(aq) ? Pb^2+(aq) + H2(g). If the hydrogen gas pressure is maintained at 1.00 atm and the lead(II) ion concentration is 0.025 M, find the pH at which this reaction is at equilibrium
Give the balanced chemical equation (including phases) that describes the combustion of butene,
A car gets 9.2 kilometers to a liter of gasoline. Assuming that gasoline is 100% octane which has a specific gravity of .69, how many liters of air (21% oxygen by volume at STP) will be requiered to burn the gasoline for a 1250 km trip? assume com..
The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs?
Dissolving 3.00 g of an impure sample of CaCO3 in an excess of HCl acid produced .656 L of CO2 (measured at 20 degrees C and 792 mmHg). calculate the percent by mass of calcium carbonate in the sample. State any assumptions.
The volume of oxygen collected over water is 226 mL at 25°C and 503.0 torr. Calculate the dry volume in milliliters of oxygen at STP.
A 50.0-mL sample of 0.50 M HCl is titrated with 0.50 M NaOH. What is the pH of the solution after 28.0 mL of NaOH have been added to the acid?
Assume every breath a person took is 0.5L of air, figure out how many grams of Oxygen you consume at every breath. Now assume that you breathe 30 times per second, figure out how long it took for you to consume all the oxygen in a sealed room of 1..
a monolayer of N2 molecules (effective area 0.165 nm2) is adsorbed on the surface of 1.00 gm of Fe/Al2O3 catalyst at 77K,the boiling point of liquid nitrogen. Upon warming the nitrogen occupies 2.86 cm3 at 0 degree celsius and 760 torr. What is th..
container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
Calculate the mass of air in an air-filled tire. Part B: Calculate the mass of helium in a helium-filled tire. Part C: What is the mass difference between the two?
which of the following transition metal complexes is diamagnetic?
Consider the reaction 2NO2(g)--> N2O4(g). Go = -5.40 kJ at 298K. (b) Calculate delta G at 298K if partialpressures of NO2 and N2O4 are 0.36 atm and 1.60 atm
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