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Calculate the concentrations of all species in a 0.225 M solution of phenylammonium chloride, C6H5NH3Cl.
What is the molarity of a solution that contains 35.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol ) in 110 g of solution?
What length of a cylindrical piece of tungsten wire having a radius of 3.71 mm has a mass of 61.3 g? The density of tungsten is 19.25 g/cm3.
A cool solution of sodium nitrite and a solution of the amine in an ice bath. Moderately concentrated hydrochloric acid is added.
What is the freezing point of a solution made by mixing 1.40 mol sodium sulfate, Na2(SO4), 1750 g H2O? (Kfp=1.86 C/m)
suppose the experiment was done with 1.0m H3PO4 as the acid. What would be the stoichiometric ratio, mol H3PO4/mol NaOH at the intersection of ascending and descending portions of the graph?
At what temperature does benzene boil when the external pressure is 480 ?
Identical containers Ar, CO2, He, and Cl2 at the same temperature and pressure. Which has the lowest density?
Does purified aspirin appear to be purer than crude aspirin? What is your evidence?
the xy-plane and the C-atom skeleton lies on the x axis, what is the hybridization of C for the right-side CH2 group?
The gaseous product of a reaction is collected in a 25.0-L container at 27 degrees C. The pressure in the container is 300.0 kPa and the gas has a mass of 96.0 g. How many moles of the gas are in the container.
What is the freezing point of a solution made by dissolving 352g of ethylene glycol C2H6O2 on 648 g of water the freezing point of pure water is 0.0C and kf of pure water is -1.86Cm?
What would be the pH of a citrate buffer composed of 0.35 M citric acid (HCit) and 0.25 M sodium citrate. The Ka of citric acid
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