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A solution of water (1.86) and glucose freezes at 3.95. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
which of the following solutes is likely to be most soluble in water
Calculate the force of attraction (in N) between a cation with a valence of +2 and an anion with a valence of -2
A sample of pure NO2 is heated to 334 degree C at which temperature it partially dissociates according to the equation 2NO2(g)-->2NO(g)+O2(g)
You need to make an aqueous solution of 0.180 M sodium sulfate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium sulfate should you add ?
You need 70.2J to raise the temperature of 34.0 g of ammonia, NH3 (g), from 23.0C to 24.0C. Calculate the specific heat of ammonia.
estimate the mean ionic activity coefficient for NaCl in a solution that is 0.020 mol/kg NaCl(aq) and 0.035 mol/kg Ca(NO3)2 (aq)
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
What is the total pressure (Ptot) in the container in torr? What is the partial pressure of argon (Par) in the container in torr?
Combustion reactions are exothermic. The heat of reaction for the combustion of cyclohexane, C6H12, is 936.8 kcal/mol. What is the heat of combustion for cyclohexane in kcal/gram
How much energy is released during the complete combustion of 433 grams of cyclopropane
On a TLC plate if two compounds have Rf values of .50 and .61, how far will they be separated from each other on a plate
The equation for a Beer's Law plot is y = 2012.5x + 0.003. If the recorded absorbance for an equilibrium mixture is 0.362, what is the concentration of FeCNS2+ (aq)?
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