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What is the molarity of a solution prepared by dissolving 15.07 g of HCl in enough water to make 920.72 mL of solution? How many milliliters of a 1.30 M KOH solution would be needed to provide 6.06 g of KOH to a chemical reaction? What is the osmolarity of a solution containing 0.3 M Ca(NO3)2 and 0.1 M Sucrose?
The mole fraction of oxygen in air is .210. If the atmospheric pressure is .979 atm, what is the solubility of oxygen in air at 25.0 degrees C?
Calculate Eo, E, and deltaG for the following cell reactions Mg (s) + Sn2+ (aq) Mg2+(aq) + Sn(s) [Mg2+]= 0.045 M, [Sn2+] = 0.035 M
It takes 50.0J to raise the temperature of an 12.0g piece of unknown metal from 13.0 C to 24.0 C. What is the specific heat for the metal?
A sample of nitrogen of mass 3.12 g at 23 C is allowed to expand reversibly and adiabatically from 400 cm^3 to 2 dm^3
How many liters of ethane, measured at 15.0 degrees Celsius and 719 Torr, must be burned to liberate 2.89 X 10^4 kJ of heat?
Decribe how to prepare 2.0 liters of a .20 M NaOH solution from 50%. (w/w) Naoh solution that has a density of 1.53 g/mL, and doing all measurements by volume, not mass.
How do you calculate the percent by mass of volatile water in hydrated salt and average H20 when the mass of hydrated salt
A buffer solution is prepared by dissolving 1.50g each of benzioc acid C6H5CO2H and sodium benzoate NaC6H5CO2 in 150.0mL of solution.
what volume of Cl2 gas will be in a balloon after a 3.95 L sample at ATP is put into an oven set for 70.0 C
By what factor does the reaction rate increase at 25oC when the catalyst is used. Assume that the Arrhenius pre-exponential factor, A, is the same for the catalyzed and uncatalyzed reactions.
when 31 g of phosphorus reacts with oxygen gas 71 g of an oxide of phosphorus is the product. what mass of oxygen gas
Calculate the conditional formation constant Kf for the formation of an EDTA complex with copper
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