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Three 5-L flasks, fixed with pressure gauges as well as small valves, each contain 4 g of gas at 273 K. Flask A contains H2, flask B contains He, and flask C contains CH4. Rank the flask contents in terms of the subsequent properties. Utilize the appropriate <, =, or > symbol to separate substances in the list.
question calculate the standard emf at 25degc of the propane fuel cell given that delta gdeg formation for propane
the absolute entropies of the solid and liquid metal are 24.0 and 66.2 J/K.mol, respectively, at the melting temperature. Calculate the melting point of the metal
Caculate the kinetic energy of a mole of oxygen atoms, all moving at a speed of 400 m/s (10000 mph).
The enthalpy of combustion for propane is -2044 kJ/mol. How many liters of propane (at STP) must be burned in order to convert 359 grams of ice initially at -5°C to liquid water at 76°C
Write equilibrium reaction for HNO 2 and compute equilibrium concentrations of all species, compute pH , OH - , and the pOH
Write a balanced chemical equation, with integer coefficients, for the complete combustion of C7H12
A 19.91 g sample of Mo2O3(s) is converted completely to another molybdenum oxide by adding oxygen.
Calculate the rate constant of a first order reaction having a half life of 7.19 x 10-5 seconds. Enter your answer to 3 sig figs. Determine the bimolecular (second order) rate constant of a reaction if the initial reagent concentration decreases f..
In heating an organic compound strongly with metallic sodium, one frequently observes the formation of a blck material, which is insoluble in water
what is the total volume occupied by the metal and the water in the graduated cylinder? 2.How could the density of a substance that was soluble in water, be determined?
The white powders are hopelessly mixed in a dustpan. You are promised a big fat raise if you can construct a flowchart that a less qualified chemist will follow to separate the three compounds
A common piece of laboratory glassware is a 125 mL beaker. What is this volume in the English system of units? [1 quart = 946. liter = 32 fl oz]
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