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A solution of a water soluble polymer having a molar mass of 3.20*10^5g/mol is placed in an osmometer and allowed to equilibrate. After equilibration at 298K, the difference in height between the top of the solution in the osmometer's tube and the water level outside the tube is found to be 8.00cm. The total volume of the polymer solution is 10mL. What mass of this polymer was initially added to the osmometer? Pleases assume that the density of the aqueous polymer solution remains 1.00g/mL.
Calculate the solubility (in grams per liter) of silver chloride in 0.051 M NaCl and in 0.0030 M AgNO3.
If the heat capacity of the calorimeter and contents was 12.05kJ/C, what is the value of q for burning 1.25 mol of benzene at constant volume and 25Ce reaction is C6H6(l)+15/2O2(g)?6CO2(g)+3H2O(l)
The delta Hvap of a certain compound is 15.39 kj*mol^-1 as well as its delta S vap is 58.08 J*mol-1*K-1. Explain what is the boiling point of this compound
Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.4 sample from the atmosphere at sea level (1.00 ) on a warm day (28), how many molecules CO2 are in your sample
Ethanol (molar mass = 46 g/mol) can be dehydrated to yield ethene (molar mass = 28 g/mol) by heating it with an excess of concentrated sulfuric acid (acting as a catalyst).
What is the final temperature, in ?C, of the gas in the bubble outside the volcano if the final volume of the bubble is 161mL and the final pressure is 0.827atm, if the amount of gas remains constant?
What is the mass of NH3 in a 80.0 cm^3 sample that has a density of 0.92g/cm^3 and consists of 20%(by mass) of NH3
Kw=1.0E-14. A sample of 0.1355g of an unknown monoprotic acid was dissolved in 25.0mL of water and titrated with 0.0950 M NaOH. If the acid required 19.3mL of base to reach the equivalence point, what is the molar mass of the acid
Nickel has a face-centered cubic unit cell. The density of nickel is 6.84 g/cm3. Calculate a value for the atomic radius of nickel.
Assume that 285 J of heat is added to 4.00 g of water originally at 23.0 degree Celsius. What would the final temperature of the water be? The specific heat capacity of water is 4.184 J/g·°C.
What are the concentrations of H2PO4- and HPO42- Respectively, for a 0.0075 M phosphoric acid solution
consider the decomposition of ammonium chloride at a certain temperature.nh4cls nh3g hclgcalculate the equilibrium
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