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How many standard units are generally used to describe the mechanics of nature? What does density describe? In general, when a derived unit becomes complicated (involves too many standard units), what is done?
Calculate Kc for the following reaction. 2NO(g)+O2(g) 2NO2(g) when equilibrium is established at 500 Kelvin, there are 0.190 moles of NO2, 2.65*10^-4 moles NO, and 0.606 moles O2 in a volume of 0.759 liters
Assuming that the calorimeter absorbs only a negligible quantity of heat and that the density of the final solution is 1.0 g/mL, calculate the enthalpy change per mole of BaSO4 formed.
Proceeds at a certain temperature until the partial pressures of H2O, H2, and O2 reach 0.0800 atm, 0.00500 atm, and 0.00200 atm respectively.
What is the rate constant when the rate law is written delta[BrO3-]/delta[t]? Or delta[Br-]/delta[t]?
Lead Oxide can react with CO2 to form lead carbonate below. Compute the equilibrium constant (K) for the reaction below at 25 degrees C.
What is the Hydrolysis equation for NaHSO4 and how do you calculate the Ka and Kb without looking it up with a pH of 0.81. Would solid benzoic acid dissolve in a solution of baking soda NaHCO3
Calculate the enthalpy change for the thermite reaction: 2Al(s) + Fe2O3(s)=2Fe(s)+Al2O3(s) ΔHrxn= -850kJ. when 12.0 mol of undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
Gallium is a metal with a wide variety of uses. Some of its applications include computer memory chips, light emitting diodes and lasers. Radioactive isotopes of gallium are used to image the human body and locate tumors.
a certain first-order reaction a---products has a rate constant of 9.00times10-3 s-1 at 45c . how many minutes does it
The total molarity of acid and conjugate base in this buffer is 0.100M . A student adds 6.10 ml of a 0.280 M solution to the beaker. How much will the pH change. The pka of acetic acid is 4.760.
A 65.00 mL sample of HNO3 solution is neutralized by exactly 34.16 mL of 0.5841 M Ba(OH)2. What is the molarity of the HNO3 solution?
25 ml of 0.10 m acetic acid is titrated with 0.10 m naoh. what is the ph at the equivalence point? ka for acetic acid
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