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Calculate the molality of a solution of NaCl if 4.0 kilograms of solution contains 32.0 moles of sodium chloride.
what are the rates of production of P4 and H2 in this experiment?
what is the K value for compound Z in the biphasic system, 2) how much do you remove in each individual extraction
Calculate and indicate values of nonzero formal charges. Based on formal charges, circle the preferred structure.
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
sample of a 0.116M potassium sulfate solution is mixed with 38.5mL of a 0.126M lead(II) acetate solution and this precipitation reaction occurs:
The Henry's Law constant for carbon dioxide gas in water at 25 oC is 0.031 mol/L-atm. Calculate the solubility of carbon dioxide in water at 25 oC in moles/L if the partial pressure of carbon dioxide in the headspace above a water sample is 1.68 a..
Assume that the kinetic energy of a 1300kg car moving at 140km/h could be converted entirely into heat. How much water is created in grams?
the earth undergoes over a specified period of time the amount of work required to build a house the heat generated by a chemical reaction carried out at constant temperature and pressure the enthalpy released by the combustion of a gallon of gaso..
Determine the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency = 1.3 x 10^15 Hz? Express your answer in Joules
a buffer solution is prepared by adding 15.0 g nac2h3o2 and 12.5 g acetic acid c2h4o2 to enough water to make 500.0 ml
If Delta H = -60.0 kJ and Delta S = -0.200 kJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature
when using a medicine dropper or a meat baster you squeeze the rubber bulb and insert the end of the tube into a
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