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Calculate SO (universe) for the formation of 1.00 mol of HCl (g) from gaseous hydrogen and chlorine at 25 OC. Is the reaction spontaneous at that temperature?
A mass of solid potassium chlorate undergoes thermal decomposition in the presence of a catalyst (manganese dioxide) to produce solid potassium chloride and oxygen gas.
In a second 50.00mL aliquot, the ClO4- was reduced to Cl- with V2(SO4)3. Titration of the reduced sample required 40.12mL of the AgNO3 solution. Calculate the %KCl and %KClO4 in the sample
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
The mass percent of water in a hydrate of MnCl2 is 36.41%. What is the empirical formula of the hydrate
Enough of a monoprotic acid is dissolved in water to produce a 0.0186 M solution. The pH of the resulting solution is 2.30. Calculate the Ka for the acid.
In a vessel with a volume 3 m^3 you put 0.03m^3 of liquid water and 2.97m^3 of water vapor so the pressure is 101.33 kPa.
A lime-soda softening plant treats a flow of 150 MGD, and the water has 86 mg/l CO2. The commercial grade of quicklime has a purity of 85% and the soda ash has a purity of 95%.
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the container at 25C
What would you expect to happen to the sizes of these bubbles if they were connected with a tube without bursting either bubble?
Identifying An Unknown Liquid And Precipitate. A high-boiling bp = 202 - 204 degrees C, burns with a yellow, sooty flame. Sodium fusion indicates that halogens, nitrogen and sulfur are not present. It is not soluble in water, dilute sodium bicarbo..
What is the percent change in the volume of a balloon if the air inside it is cooled from 67C to 47C?
the density of benzene at 15 degrees C is 0.8787g/ml.calculate the mass of 0.1550L of benzene at this temp.
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