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1. A solution is prepared by dissolving 0.112 g of CaCl2 in 100 g of water. The osmotic pressure of this solution is found to be 512 mmHg at 25 degrees C. Assume that the density of the solution is 1.00g/mL.
a. What is the van't Hoff factor, i, for the solution?b. How would the value of i change as the solution becomes more concentrated? Explain.
2. Arrange these aqueous solutions, each 10% by mass in solute, in order of increasing freezing point and boiling point. Explain your reasoning.
-Glucose (C6H12O6)
-Sucrose (C12H22O11)
-Sodium nitrate
-Calcium Chloride
imagine you are a water molecule, describe your travels through the many you have been and might go in the future as you make your way around the hydrologic cycle time after time. Include travels through organisms.
Write a balance equation for each of the following reactions and identify the type of reaction: a) Solid potasium chlorate is heated to form solid potassium chloride and oxygen gas; b) Carbon monoxide gas and oxygen gas combine to form carbon diox..
A student measured the wavelength of hydrogen's visible red spectral line to be 647 nanometers. Which is a correct numerical setup for calculating the student's percent error.
If the barometric pressure on a mountain top in colorado is 521 mm of mercury what is the pressure in inches of hg. in atmospheres. in Pascals
an aqueous antifreeze solution is 48.5 ethylene glycol c2h6o2 by mass. the density of the solution is 1.062
Sims Inc. earned $1.00 per share in 2000. Five years later, in 2005, it earned $2.00. What was the growth rate in Sims' earnings per share (EPS) over the 5-year period?
What is the value for k, the reaction constant, at 60 degrees if the Energy of activation = 75.5 kJ/mol?
An analysis showed that 25.0 g of this hydrate, CoCl 2 * 6 H 2 O, contains 11.3 g of water. What is the percent water by weight in this hydrate?
a large plane wall has a thicness 2 m thermak conductivity 1.2 wm.c and surface area 15 m. the to side of the wall are
how many grams of sodium lactate nac3h5o3 should be added to 1.00 l of 0.260 m lactic acid hc3h5o3 to form a buffer
Calculate the amount of energy in the form of heat that is produced when a volume of 3.75 L of SO2(g) is converted to 3.75 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 atm and 25.0 °C. Assume ideal gas beha..
Trans-1,4-di-tert-butylcyclohexane exists in a normal chair conformation. Cis-1,4-di-tertbutylcyclohexane, however, adopts a twist-boat conformation. Draw both isomers, and explain why the cis isomer is more stable in a twist-boat conformation.
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