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When 0.200g of a high-molecular-weight compound is dissolved in water to form 12.5mL of solution at 25 degrees celsius, the osmotic pressure of the solution is found to be 1.10x10^-3 atm. What is the molar mass of the compound?
determine what concentration of oh - is needed to dissolve 0.015 mol ofnbspznoh2 zinc hydroxide in a liter of solution
how many liters of hydrogen are obtained from the reaction of 4 g calcium with excess water, at 37 Celsius and 0.962 atm?
1what happens when chlorosulfonic acid comes in contact with water?2how will you safely destroy any residual of
a melting point determination of vanillin melting point 80 c was made with a heating apparatus setting at the maximum
A solution is made by mixing 49.0 mL of ethanol, C2H6O, and 51.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 degrees celcius
Distinguishing the given compounds by Infrared spectroscopy, Cyclohexene and 2-hexyne both have the molecular formula C6H10
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25 Celcius. The concentration of Cu2+ in one of the half cells is 1.5 * 10-3 M. what is the concentration of Cu2+ in the other half cell?
derive the internal pressure for a dieterici gas. justify physically the form of the expression obtained e.g. what are
what is the energy required for an electronic transition from n = 2 to n = 3 in a hydrogen atom? A. 7.87E-19J B. 5.45E10-19J C. 3.03E10-19 D. 2.42E-10J
a beaker containing 250g of water is heated from 23 degrees C to 100 degrees C. what is the heat gain in calories?
250g of ice at 265K is mixed with 100g of water ar 305K. Calculate the final temperature of the mixture. Assume that no energy in the form of heat is transferred to the environment. (heat of fusion=300J/g; c(ice) =2.06J/g*K, c(water)=4.184J/g*K.
What is the concentration (in M) of the chloride ion when 16 mL of a 0.625 M solution of sodium chloride is combined with 17.3 mL of a 0.551 M solution of iron(III) chloride to a final volume of 56.5 mL
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