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Rank the following substances in order from most soluble in water to least soluble in water: propane, C3H8; methanol, CH3OH; lithium nitrate, LiNO3; and butane, C4H10. Rank from most to least soluble in water. To rank items as equivalent, overlap them.
an insulated container is used to hold 47.10 g of water at 26.10c. a sample of copper weighing 13.30g is placed in a
3.21 grams of a protein that has a molar mass of 16,000 g/mol are dissolved in 25.0 mL of water at 25 ºC. Calculate the osmotic pressure in mmHg.
Explain what is the height of a column of liquid in a barometer if the density of the liquid is 0.929 g/mL and the local atmospheric pressure is 0.72bar
A buffer is prepared by adding 1.50X 10^2 ml of 0.250 M NaOH to 2.50X10^2 ml of 0.350 M weak acid, HB. The solution is diluted to 1.00 L. If the pH of the resulting solution is 6.55, what is the pKa of the weak acid
A solution is made by combining 15.0mL of 18.5M acetic acid with 5.60g of sodium acetate and diluting to a total volume of 1.50 L. Calculate the pH of the solution.
how long was the flight? How far did it travel in the horizontal direction before landing? What was the highest altitude it reached? Neglecting air friction at what angle should the projectile have been fired to maximize the horizontal range.
100g of water specific heat4.184 jgc and 100g of a metal sample specific heat0.397 jgc are heated from 25 degrees
predict a shape of small organic molecules that could bind tightly with G4. Be sure to explain your reasoning in terms of the measured distances and discuss the likely intermolecular forces involved in the interaction.
A sample serum of mass 25g is cooled from 290K to 275K at a constant pressure by the extraction of 1.2J of energy as heat. Calculate q and deltaH and estimate the heat capacity of the sample.
If two different substances have the same or nearly the same Rf values, it is difficult to separate these materials in a mixture. How could this experiment be changed to separate such a mixture
Using two different methods, determine delta G degree at 25 degrees for the formation of POCl3 from its constituent elements
What mass of carbon dioxide is present in 1.00 \rm m^3 of dry air at a temperature of 25 C and a pressure of 685 torr. Calculate the mass percentage of oxygen in dry air.
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