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Some physical properties of water are shown below.
freezing point 0.00°C boiling point 100.00°C Kf 1.86°C/m Kb 0.512°C/m
What is the freezing point of a solution of ethylene glycol (antifreeze), a nonelectrolyte, that contains 140. g of C2H6O2 dissolved in 290. g of water? Use molar masses with at least as many significant figures as the data given.
A solution of water (Kf = 1.86 degrees C/m) and glucose freezes at -2.55 degrees C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 degrees C. Express the molal concentration numeri..
How many orbitals correspond to each of the following designations?
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ?C to 70 ?C .What is the speci?c heat capacity of this liquid.
in a .1000 M NaOH solution, 20.76 mL of the NaOH solution were required t neturalize completely 13.15 mL of the malonic acid solution; what is the molarity of the malonic solution?
After you determine the concentration of the unknown stock solution, you will need to use the density to calculate the % mass of thymol
strontium metal crystalizes in a cubic unit cell which has a edge length of 612 pm. If the mass of an atom of Sr is 87.62 amu, and the density of Sr is 2.54 g/cm3.
How much energy is released per Kg of Dilithium formed? Mass of one atom of 6 Li is 6.015121 amu. Do not know where to start.
If 30.00 mL of 0.500 M HCl is used to neutralize 10.00 mL of KOH, what is the concentration of the base?
If O2 is collected over water at 40.0 Celsius and a total pressure of 737 mmHg, what volume of gas will be collected for the complete reaction of 23.92 g of NiO?
The bromocresolgreen end point of the titration was reached after the addition of 30.00 mL of hydrochloric acid solution. Calculate the concentration of the acid solution.
A cylinder fitted with a piston contains 3.00 moles of He gas (ideal!) at P = 1 bar and is held in a large constant-temperature bath at 400 K. The pressure is reversibly increased to 5.00 bar.
Hydrogen gas was collected over water in a eudiometer at 25 C when the atmospheric pressure was 752 mm Hg. What was the pressure of the hydrogen gas?
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