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What pressure is exerted by 0.879 mol of N2 in a 7.42 L steel container at 7.8 degrees celcius?
at 25 degree celsius an aqueous solution containing 35.0wt h2so4nbsphas a specific gravity of 1.2563. a quantity of the
Determine the equilibrium total pressure in a closed reaction flask if 0.040 mol of NO and 0.020 mol of O2 were placed in the evacuated reaction flask and heated to 100°C, resulting in a 75%-yield of NO2.
If 115 of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m. ?
Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H2C2O4 and H2O in the balanced reaction
The solubility of CO2 in water at 25 degrees celsius and 1 atm is 0.034 mol/L. What is its solubility at a partial pressure in air of 0.00017 atm? Assume that CO2 obeys Henry's Law. Enter your answer in scientific notation.
The activity of a radioactive sample is the number of nuclear disintegrations per second, which is equal to the first-order rate constant times the number of radio-active nuclei present.
What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solute?
If the caffeine concentration in a particular brand of soda is 3.21mg/oz, drinking how many cans of soda would be lethal? Assume 10.0 grams of caffeine is a lethal dose and there are 12 oz in a can
How many grams of C3H8O3 must be added to 720 grams of water at 70.0oC in order to lower the vapor pressure by 4.25 torr. The vapor pressure of water at 70.0oC is 233.65 torr.
What is the equivalence point pH for the titration of 100 mL of 0.155 M HCNO (Ka = 2.0x10-4) with 100 mL of 0.155 M LiOH.
the average soil organic carbon content = 0.01%. assume that soil organic carbon is the primary sorbent and that degredation and dispersion are negligible.
During mixing, heat is lost to the surroundings at a rate of 30 kJ s-1. What is the temperature of the warm water stream? Assume the specific heat of the water constant at 4.18 kJ kg-1 K-1.
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